- Noninvasive identification of patients with early coronary atherosclerosis by assessment of digital reactive hyperemia
Piero O Bonetti
Center for Coronary Physiology and Imaging, Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota, USA
J Am Coll Cardiol 44:2137-41. 2004
..We investigated the value of reactive hyperemia peripheral arterial tonometry (RH-PAT) as a noninvasive tool to identify individuals with coronary microvascular endothelial dysfunction...
- Decoupling the cortical power spectrum reveals real-time representation of individual finger movements in humans
K J Miller
Department of Physics, Seattle Children s Research Institute and Department of Neurological Surgery, University of Washington, Seattle, Washington 98195, USA
J Neurosci 29:3132-7. 2009
..This broad-spectral change exhibited spatially discrete representation for individual fingers and reproduced the temporal movement trajectories of different individual fingers.
- Coding and use of tactile signals from the fingertips in object manipulation tasks
Roland S Johansson
Physiology Section, Department of Integrative Medical Biology, Umea University, SE 901 87 Umea, Sweden
Nat Rev Neurosci 10:345-59. 2009
..Analysis of signals in tactile afferent neurons and central processes in humans reveals how contact events are encoded and used to monitor and update task performance...
- Integration of sensory and motor representations of single fingers in the human cerebellum
Institute of Cognitive Neuroscience, University College London, London, United Kingdom
J Neurophysiol 105:3042-53. 2011
..In the present study we investigated the relationship between these two maps for the representation of single fingers. Participants made isometric key presses with individual fingers or received vibratory tactile stimulation to the ..
- Developmental basis of sexually dimorphic digit ratios
Howard Hughes Medical Institute and Department of Molecular Genetics and Microbiology and Department of Biology, University of Florida, Gainesville, FL 32610, USA
Proc Natl Acad Sci U S A 108:16289-94. 2011
..Our results also suggest that the 2D:4D ratio can serve as an indicator of disrupted endocrine signaling during early development, which may aid in the identification of fetal origins of adult diseases...
- 2nd to 4th digit ratios, fetal testosterone and estradiol
Developmental Psychiatry Section, University of Cambridge, Douglas House, 18b Trumpington Road, Cambridge CB2 2AH, UK
Early Hum Dev 77:23-8. 2004
..However, there are no studies which show direct relationships between fetal testosterone (FT), fetal estradiol (FE) and 2D:4D...
- Single-trial reconstruction of finger-pinch forces from human motor-cortical activation measured by near-infrared spectroscopy (NIRS)
ATR Computational Neuroscience Laboratories, Kyoto, Japan
Neuroimage 47:628-37. 2009
..These data demonstrate the potential for reconstructing different levels of external loads (forces) from those of the internal loads (activation) in the human brain using NIRS...
- Finger vein recognition using local line binary pattern
Bakhtiar Affendi Rosdi
Intelligent Biometric Group, School of Electrical and Electronic Engineering, USM Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Seberang Perai Selatan, Pulau Pinang, Malaysia
Sensors (Basel) 11:11357-71. 2011
..Experimental results show that the proposed method using LLBP has better performance than the previous methods using LBP and local derivative pattern (LDP)...
- Testosterone administration impairs cognitive empathy in women depending on second-to-fourth digit ratio
Jack van Honk
Department of Experimental Psychology, Utrecht University, 3584 CS, Utrecht The Netherlands
Proc Natl Acad Sci U S A 108:3448-52. 2011
..These findings have importance for our understanding of the psychobiology of human social intelligence...
- Second to fourth digit ratio: ethnic differences and family size in English, Indian and South African populations
J T Manning
School of Biological Sciences, The University of Liverpool, Liverpool, UK
Ann Hum Biol 30:579-88. 2003
..Negative associations between male 2D:4D and family size and positive associations between female 2D:4D and family size have been found in some European populations...
- Increased synchronization of cortical oscillatory activities between human supplementary motor and primary sensorimotor areas during voluntary movements
Human Brain Research Center, Department of Neurology, Kyoto University Graduate School of Medicine, Shogoin, Sakyo, Kyoto, 606-8507, Japan
J Neurosci 21:9377-86. 2001
..This increase of synchronization between multiple motor areas in the preparation and execution of voluntary movements may reflect the multiregional functional interactions in human motor behavior...
- Improvement of sensorimotor functions in old age by passive sensory stimulation
Department of Theoretical Biology, Institute for Neuroinformatics, Ruhr University Bochum, Bochum, Germany
Clin Interv Aging 3:673-90. 2008
..Further optimizing of the stimulation protocol can be assumed to strengthen both the range and durability of its efficacy...
- A functional MRI study of subjects recovered from hemiparetic stroke
S C Cramer
Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Mass, USA
Stroke 28:2518-27. 1997
..We used functional magnetic resonance imaging to compare brain activations in normal controls and subjects who recovered from hemiparetic stroke...
- Second to fourth digit length ratio (2D:4D) and adult sex hormone levels: new data and a meta-analytic review
Technische Universitat Chemnitz, Institut fur Psychologie, Wilhelm Raabe Str 43, D 09120 Chemnitz, Germany
Psychoneuroendocrinology 32:313-21. 2007
..The findings from this current study add to the growing body of evidence demonstrating that 2D:4D is a suitable tool to study the effects of prenatal androgenization on human behavior and cognition...
- Second-to-fourth digit ratio predicts success among high-frequency financial traders
John M Coates
Department of Physiology, Development, and Neuroscience, University of Cambridge, Cambridge CB2 3DY, United Kingdom
Proc Natl Acad Sci U S A 106:623-8. 2009
..The success and longevity of traders exposed to high levels of prenatal androgens further suggests that financial markets may select for biological traits rather than rational expectations...
- TMS of the occipital cortex induces tactile sensations in the fingers of blind Braille readers
Chaire Harland Sanders en sciences de la vision, Ecole d Optometrie, Universite de Montreal, Montreal, Canada
Exp Brain Res 184:193-200. 2008
..phosphenes following occipital cortex stimulation, some of the blind subjects reported tactile sensations in the fingers that were somatotopically organized onto the visual cortex...
- Suppression of the non-dominant motor cortex during bimanual symmetric finger movement: a functional magnetic resonance imaging study
National Institute for Physiological Sciences, 38 Nishigo naka, Myodaiji, Okazaki, Aichi 444 8585, Japan
Neuroscience 141:2147-53. 2006
..subjects completed four conditions: sequential finger tapping using the right and left index and middle fingers, bimanual mirror and parallel finger tapping...
- Post-movement beta rebound is generated in motor cortex: evidence from neuromagnetic recordings
Michael T Jurkiewicz
Neuromagnetic Imaging Laboratory, The Hospital for Sick Children Research Institute, Toronto, Ontario, Canada
Neuroimage 32:1281-9. 2006
- A new form of autosomal dominant limb-girdle muscular dystrophy (LGMD1G) with progressive fingers and toes flexion limitation maps to chromosome 4p21
Human Genome Research Center, Department of Biology, University of Sao Paulo, Sao Paulo, Brazil
Eur J Hum Genet 12:1033-40. 2004
..loci in a Brazilian-Caucasian family with 12 patients affected by AD late-onset LGMD associated with progressive fingers and toes flexion limitation...
- Discharges in human muscle receptor afferents during block grasping
Physiology Section, Department of Integrative Medical Biology, Umea University, S 901 87 Umea, Sweden
J Neurosci 28:12632-42. 2008
..We therefore let subjects use their thumb and fingers to grasp blocks presented to them while we recorded muscle afferents from the thumb and finger extensor muscles ..
- Hand function: peripheral and central constraints on performance
Marc H Schieber
Department of Neurology, University of Rochester Medical Center, 601 Elmwood Ave, Box 673, Rochester, NY 14642, USA
J Appl Physiol (1985) 96:2293-300. 2004
..Experimental evidence indicates that the simultaneous motion and force of the fingers are characterized by coordination patterns that reduce the number of independent degrees of freedom to be ..
- Timing of muscle activation in a hand movement sequence
Mary D Klein Breteler
Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA
Cereb Cortex 17:803-15. 2007
..The results suggest that hand movements may be generated by activity waves unfolding in time. Because finger muscles are under relatively direct cortical control, this suggests a specific form of cortical pattern generation...
- Online myoelectric control of a dexterous hand prosthesis by transradial amputees
The BioRobotics Institute formerly ARTS and CRIM Labs, Scuola Superiore Sant Anna, 56025 Pontedera, Italy
IEEE Trans Neural Syst Rehabil Eng 19:260-70. 2011
..These results are encouraging for the development of noninvasive EMG interfaces for the control of dexterous prostheses...
- Grip force regulation during pinch grip lifts under somatosensory guidance: comparison between people with stroke and healthy controls
Jannette M Blennerhassett
Physiotherapy Department, Austin Health Royal Talbot Rehabilitation Centre, Kew, Australia
Arch Phys Med Rehabil 87:418-29. 2006
..To compare the timing and grip force application in a pinch grip task performed under somatosensory guidance in stroke and matched controls and to identify characteristics of impaired grip force regulation after stroke...
- Second to fourth digit ratio and cooperative behavior
Department of Marketing, Katholieke Universiteit Leuven, Naamsestraat 69, 3000 Leuven, Belgium
Biol Psychol 71:111-5. 2006
..These findings suggest that: (1) there might be a high and a low testosterone strategy to gain status and (2) the high testosterone strategy is characterized by a preference for normative behavior...
- Proprioceptive signals contribute to the sense of body ownership
Lee D Walsh
Neuroscience Research Australia, Barker Street, Randwick, Sydney, NSW 2031, Australia
J Physiol 589:3009-21. 2011
..It seems that the congruence of sensory stimuli ismore important to establish body ownership than the presence of multiple sensory signals...
- Partial reconstruction of muscle activity from a pruned network of diverse motor cortex neurons
Marc H Schieber
Department of Neurology, Neurobiology and Anatomy, University of Rochester Medical Center, 601 Elmwood Avenue, Rochester, NY 14642, USA
J Neurophysiol 97:70-82. 2007
- Beta-range EEG-EMG coherence with isometric compensation for increasing modulated low-level forces
Neurological Clinic, University Freiburg, Freiburg, Germany
J Neurophysiol 102:1115-20. 2009
..This finding re-enforces the importance of the beta-range EEG-EMG coherence in sensorimotor integration...
- Second to fourth digit ratio (2D:4D) and concentrations of circulating sex hormones in adulthood
David C Muller
Cancer Epidemiology Centre, The Cancer Council of Victoria, Melbourne, Australia
Reprod Biol Endocrinol 9:57. 2011
..The objective of this study was to examine whether circulating concentrations of sex hormones and SHBG measured in adulthood was associated with 2D:4D...
- Centrifugal regulation of human cortical responses to a task-relevant somatosensory signal triggering voluntary movement
Department of Integrative Physiology, National Institute for Physiological Sciences, Myodaiji, Okazaki 444 8585, Japan
Neuroimage 32:1355-64. 2006
..The present findings indicate a difference in function between the SI and SII in somatosensory-motor regulation...
- The effect of bilateral isometric forces in different directions on motor cortical function in humans
Juliette A Yedimenko
CNBC Systems Neuroscience Institute, Department of Physical Medicine and Rehabilitation, 3501 Fifth Avenue, University of Pittsburgh, Pittsburgh, PA 15213, USA
J Neurophysiol 104:2922-31. 2010
..These findings suggest that during generation of bimanual isometric forces the M1 is driven by "extrinsic" parameters related to the hand action...
- Separating deceptive and orienting components in a Concealed Information Test
Institute for Frontier Areas of Psychology and Mental Health, Freiburg, Germany
Int J Psychophysiol 70:95-104. 2008
..The findings further support the notion that psychophysiological measures elicited by a modified CIT may reflect different mental processes involved in orienting and deception...
- Motor command for precision grip in the macaque monkey can be mediated by spinal interneurons
Department of Integrative Medical Biology, Section of Physiology, Umea University, Umea, Sweden
J Neurophysiol 106:122-6. 2011
..The precision grip could be performed within the first 15 days after a CST lesion in C4/C5 but not in C2. We conclude that C3-C4 propriospinal interneurons also can carry the command for precision grip...
- The brain's fingers and hands
Institute of Cognitive Neuroscience and Department of Psychology, University College London, Alexandra House, London, UK
Exp Brain Res 172:94-102. 2006
..fingertips, with the hands in one of two postures: either the right hand was vertically above the left, or the fingers of both hands were interwoven...
- Tactile spatial resolution in blind braille readers
R W Van Boven
Department of Neurology, Northwestern University Medical School, Chicago, IL, USA
Neurology 54:2230-6. 2000
..To determine if blind people have heightened tactile spatial acuity...
- Noise-enhanced vibrotactile sensitivity in older adults, patients with stroke, and patients with diabetic neuropathy
Center for BioDynamics and Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
Arch Phys Med Rehabil 83:171-6. 2002
..To test the hypothesis that vibrotactile detection thresholds in older adults, patients with stroke, and patients with diabetic neuropathy can be significantly reduced with the introduction of mechanical noise...
- Tactile acuity is enhanced in blindness
Department of Occupational Therapy, Rangos School of Health Sciences, Duquesne University, Pittsburgh, Pennsylvania 15282, USA
J Neurosci 23:3439-45. 2003
..The results suggest that crossmodal plasticity may underlie tactile acuity enhancement in blindness...
- Dynamic lumped element response of the human fingerpad
D T Pawluk
Harvard University, Division of Engineering and Applied Sciences, Cambridge, MA 02138, USA
J Biomech Eng 121:178-83. 1999
..4 s) plus a constant. The model was confirmed with data from sinusoidal displacement trajectories...
- On somatotopic representation centers for finger movements in human primary motor cortex and supplementary motor area
Laboratory of Functional Neuroimaging, Fondazione Santa Lucia IRCCS, Via Ardeatina 306, 10079 Rome, Italy
Neuroimage 13:1027-34. 2001
..While separations for digit representations occurred, the entire data set provided more support for the concept of distributed, overlapping representations than for a classic homunculus organization for voluntary finger movements...
- The role of fingerprints in the coding of tactile information probed with a biomimetic sensor
Laboratoire de Physique Statistique de l Ecole Normale Superieure, CNRS UMR 8550, Associé aux Universités Paris 6 et Paris 7, 24 rue Lhomond, 75231 Paris Cedex 05, France
Science 323:1503-6. 2009
..Thus, fingerprints may perform spectral selection and amplification of tactile information that facilitate its processing by specific mechanoreceptors...
- Second to fourth digit ratio, body mass index, waist-to-hip ratio, and waist-to-chest ratio: their relationships in heterosexual men and women
Ludwig Boltzmann Institute of Urban Ethology, University of Vienna, Austria
Ann Hum Biol 30:728-38. 2003
- A subcortical oscillatory network contributes to recovery of hand dexterity after spinal cord injury
Department of Developmental Physiology, National Institute for Physiological Sciences, Okazaki, Japan
Brain 132:709-21. 2009
..We propose that a subcortical oscillator commonly recruits hand/arm muscles, via remaining pathways such as reticulospinal and/or propriospinal tracts, independent of cortical oscillation, and contributes to functional recovery...
- Decoding flexion of individual fingers using electrocorticographic signals in humans
BCI R and D Program, Wadsworth Center, New York State Department of Health, Albany, NY, USA
J Neural Eng 6:066001. 2009
..these results by demonstrating that it is also possible to decode the time course of the flexion of individual fingers using ECoG signals in humans, and by showing that these flexion time courses are highly specific to the moving ..
- Brain regions controlling nonsynergistic versus synergistic movement of the digits: a functional magnetic resonance imaging study
H Henrik Ehrsson
Motor Control Laboratory, Department of Woman and Child Health, Karolinska Institutet, SE 171 77 Stockholm, Sweden
J Neurosci 22:5074-80. 2002
..A task in which flexion of the thumb is accompanied by extension of the fingers and vice versa, i.e...
- Coarticulation in fluent fingerspelling
Thomas E Jerde
Department of Neuroscience, University of Minnesota, Minneapolis, Minnesota 55455, USA
J Neurosci 23:2383-93. 2003
..The proximal interphalangeal (PIP) joints of the index and middle fingers tended to show dissimilation, whereas at the same time (i.e...
- Finger interaction during accurate multi-finger force production tasks in young and elderly persons
Department of Integrative Physiology, University of Colorado, CO 80309, Boulder, USA
Exp Brain Res 156:282-92. 2004
..of finger interaction during maximal force production (MVC) tasks are accompanied by changed coordination of fingers in multi-finger accurate force production tasks...
- Differential activation in somatosensory cortex for different discrimination tasks
Institute of Medical Psychology and Behavioral Neurobiology, University of Tubingen, D 72074 Tubingen, Germany
J Neurosci 20:446-50. 2000
..EEG revealed that, when subjects received passive tactile stimulation of D1 or D5, the representations of the fingers in primary somatosensory cortex were closer together after training than before...
- Digit ratio (2D:4D) and physical fitness in males and females: Evidence for effects of prenatal androgens on sexually selected traits
Department of Psychology, Technische Universitat Chemnitz, Germany
Horm Behav 49:545-9. 2006
..Thus, 2D:4D in males may be a negative correlate of frequent exercise which then relates to achievement in sports and athletics...
- Perception of the consequences of self-action is temporally tuned and event driven
Paul M Bays
Sobell Department of Motor Neuroscience, Institute of Neurology, University College London, Queen Square, London, WC1N 3BG, United Kingdom
Curr Biol 15:1125-8. 2005
..When a motor generated a tap on the left finger synchronously with the right tap, simulating contact between the fingers, the perception of force in the left finger was attenuated compared to the same tap experienced during rest...
- Anticipatory planning and control of grasp positions and forces for dexterous two-digit manipulation
Department of Kinesiology, Arizona State University, Tempe, Arizona 85287 0404, USA
J Neurosci 30:9117-26. 2010
..These results are discussed in the context of motor equivalence and sensorimotor integration of grasp kinematics and kinetics...
- Heritability of the second to fourth digit ratio (2d:4d): A twin study
Simon N Paul
Twin Research and Genetic Epidemiology Unit, St Thomas Hospital, London, United Kingdom
Twin Res Hum Genet 9:215-9. 2006
..However the current study design does not preclude the possibility of confounding between heritability estimates and unobserved prenatal effects...
- Having a body versus moving your body: How agency structures body-ownership
Department of Psychology, Institute of Cognitive Neuroscience, University College London, Alexandra House, 17 Queen Square, London WC1N 3AR, UK
Conscious Cogn 15:423-32. 2006
..However, the distribution of the RHI across stimulated and non-stimulated fingers depended on the kind of stimulation...
- Patterns of hand motion during grasping and the influence of sensory guidance
Department of Neuroscience, University of Minnesota, Minneapolis, Minnesota 55455, USA
J Neurosci 22:1426-35. 2002
..on the kinematics, and the effect of the physical presence of the object became manifest primarily after the fingers had contacted the object. Two principal components accounted for >75% of the variance...
- Early onset of post-movement beta electroencephalogram synchronization in the supplementary motor area during self-paced finger movement in man
Department of Medical Informatics, Institute of Biomedical Engineering, University of Technology Graz, Inffeldgasse 16a, A 8010, Graz, Austria
Neurosci Lett 339:111-4. 2003
..This assumed resetting or inhibitory process within the SMA precedes that of the networks within the primary motor hand area...
- Effector-independent representations of simple and complex imagined finger movements: a combined fMRI and TMS study
J P Kuhtz-Buschbeck
Institute of Physiology, Christian Albrechts Universitat, Olshausenstr 40, D 24098 Kiel, Germany
Eur J Neurosci 18:3375-87. 2003
..The effector-independent activation of left premotor areas was particularly evident in the simple motor imagery task and suggests a left hemispherical dominance for kinesthetic movement representations in right-handed subjects...
- Keeping with the beat: movement trajectories contribute to movement timing
Behavioural Brain Sciences Centre, School of Psychology, University of Birmingham, Edgbaston, B15 2TT, UK
Exp Brain Res 159:129-34. 2004
..We suggest that movement asymmetry in repetitive timing tasks helps satisfy requirements of precision and accuracy relative to a target event...
- Differential effects of synchronous and asynchronous multifinger coactivation on human tactile performance
Department of Theoretical Biology, Institute for Neuroinformatics, Ruhr University Bochum, D 44780 Bochum Germany
BMC Neurosci 8:58. 2007
..Here we investigated the effect of different types of multifinger CA on the tactile performance of each finger of the right hand...
- Dissociation of the pathways mediating ipsilateral and contralateral motor-evoked potentials in human hand and arm muscles
Human Motor Control Section, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD 20892, USA
J Physiol 518:895-906. 1999
..Other pathways, such as branching of corticomotoneuronal axons, a transcallosal projection or a slow-conducting monosynaptic ipsilateral pathway are very unlikely or can be excluded...
- Utility of second derivative of the finger photoplethysmogram for the estimation of the risk of coronary heart disease in the general population
Environmental Medicine, Graduate School of Medicine, Tama Nagayama Hospital, Nippon Medical School, Tokyo, Japan
Circ J 70:304-10. 2006
- Quantification of myelinated endings and mechanoreceptors in human digital skin
Salvatore Maugeri Foundation, IRCCS, Center of Telese Terme, Italy
Ann Neurol 54:197-205. 2003
..In addition to diagnostic applications, this technique allows clarification of the mode of termination of Abeta fibers and their relationship with mechanoreceptors, leading to relevant electrophysiological speculations...
- Covert respiration measures for the detection of concealed information
Ariel University Center, Ariel, Israel
Biol Psychol 77:284-91. 2008
..One of the covert measures produced detection efficiency that was similar to that of the standard respiration and finger pulse measures, but less than the electrodermal measure...
- Integration of hand and finger location in external spatial coordinates for tactile localization
Biological Psychology and Neuropsychology, University of Hamburg, Von Melle Park 11, 20146 Hamburg, Germany
J Exp Psychol Hum Percept Perform 38:386-401. 2012
..Whereas remapping seems to occur automatically for the hands and feet, the fingers may constitute an exception in that some studies have implied purely somatotopic coding of touch to the fingers...
- The presence of aggression cues inverts the relation between digit ratio (2D:4D) and prosocial behaviour in a dictator game
Department of Marketing and Organization Studies, Katholieke Universiteit Leuven, Leuven, Belgium
Br J Psychol 100:151-62. 2009
Digit ratio (2D:4D) is a sexually dimorphic trait. Men have relatively shorter index (2D) compared to ring (4D) fingers than women. More masculine ratios are thought to be influenced by higher prenatal testosterone levels...
- The relationship between the photoplethysmographic waveform and systemic vascular resistance
Aymen A Awad
Department of Anesthesiology, Yale University School of Medicine, 333 Cedar Street, P O Box 208051, New Haven, CT 06520 8051, USA
J Clin Monit Comput 21:365-72. 2007
..The objective of this study was to determine the relationship between systemic vascular resistance (SVR), finger & ear photoplethysmographic measurements in 14 adult patients undergoing coronary artery bypass grafting (CABG)...
- Sensorimotor integration to cutaneous afferents in humans: the effect of the size of the receptive field
Department of Neurological Sciences and Vision, Section of Neurological Rehabilitation, University of Verona, Verona, Italy
Exp Brain Res 167:362-9. 2005
..second (D2) and third finger (D3), the right second and third finger together (D23) and the right first three fingers together (D123) on the amplitude of motor evoked potentials (MEPs) to TMS in hand and forearm muscles...
- Analysis of finger-tapping movement
Department of Measurement and Information Sytems, Budapest University of Technology and Economics, P O B 91, 1521 Budapest, Hungary
J Neurosci Methods 141:29-39. 2005
..32 healthy subjects (148 recordings) and 10 Parkinsonian patients (25 recordings) were tested. The tracking of fingers during the whole movement increased the level of information obtained from the finger-tapping test compared to ..
- Digit ratio (2D:4D) and performance in elite rugby players
Ospreys Rugby Union Club, Swansea
J Sports Sci 28:1415-21. 2010
..Low right 2D:4D and low right - left 2D:4D difference were significantly linked with large numbers of tries. We conclude that low right 2D:4D and low right - left 2D:4D difference are predictors of high rugby performance...
- Finger length ratios (2D:4D) in anthropoids implicate reduced prenatal androgens in social bonding
School of Archaeology, Classics and Egyptology, University of Liverpool, Liverpool L69 3GS, United Kingdom
Am J Phys Anthropol 141:395-405. 2010
..Human ratios are intermediate between pair-bonded and more promiscuous hominoids. We propose that PAE may be involved in promoting species characteristic social behavior in anthropoids...
- Digit ratio and hand-grip strength in German and Mizos men: cross-cultural evidence for an organizing effect of prenatal testosterone on strength
Department of Sociobiology Anthropology, University of Gottingen, Gottingen, D 37073, Germany
Am J Hum Biol 18:776-82. 2006
..Measures of grip strength correlate strongly with strength in other muscle groups, so we conclude that PT may have an early organizing effect on strength in men, and this is likely to be widespread in human groups...
- A new algorithm for distorted fingerprints matching based on normalized fuzzy similarity measure
Center for Biometrics and Security Research, Key Laboratory of Complex Systems and Intelligence Science, Institute of Automation, Chinese Academy of Sciences, Beijing 100080, China
IEEE Trans Image Process 15:767-76. 2006
..The algorithm gives considerably higher matching scores compared to conventional matching algorithms for the deformed fingerprints...
- Sporting achievement: what is the contribution of digit ratio?
Durham University, UK
J Pers 75:663-77. 2007
..We suggest that physiological as well as psychological factors may be an important avenue for future study...
- Multiresolution imaging of MEG cortical sources using an explicit piecewise model
Cognitive Neuroscience and Brain Imaging Laboratory, CNRS UPR 640 LENA, University Pierre and Marie Curie Paris 6, Hopital de la Salpetriere, Paris, France
Neuroimage 38:439-51. 2007
..An experimental evaluation was conducted with MEG data from a somatotopic paradigm. Results show that MiMS is an efficient image model selection technique with robust performances at realistic noise levels...
- Finger vein recognition based on a personalized best bit map
School of Computer Science and Technology, Shandong University, Jinan 250101, China
Sensors (Basel) 12:1738-57. 2012
..Experimental results show that PBBM achieves not only better performance, but also high robustness and reliability. In addition, PBBM can be used as a general framework for binary pattern based recognition...
- Receptive field properties of the macaque second somatosensory cortex: representation of orientation on different finger pads
Paul J Fitzgerald
Zanvyl Krieger Mind Brain Institute, Department of Neuroscience, Johns Hopkins University, Baltimore, Maryland 21218, USA
J Neurosci 26:6473-84. 2006
..orientations on their tuned pads, which can be interpreted as evidence for integration of information across fingers or as a form of positional invariance...
- Altered pattern of motor cortical activation-inhibition during voluntary movements in Tourette syndrome
Institute of Clinical Neuroscience and Medical Psychology, Heinrich Heine University, Duesseldorf, Germany
Mov Disord 25:1960-6. 2010
..The stronger this inhibition is, the better symptoms appear to be controlled...
- High fetal testosterone and sexually dimorphic cerebral networks in females
Stockholm Brain Institute and Department of Clinical Neuroscience, SE 17177 Stockholm, Sweden
Cereb Cortex 19:1167-74. 2009
..Thus, we find no evidence for masculinization of the limbic circuits in women with high fetal testosterone...
- High gamma oscillations of sensorimotor cortex during unilateral movement in the developing brain: a MEG study
Department of Neurology, MLC 2015, Cincinnati Children s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
Brain Topogr 23:375-84. 2011
..In addition, the interesting finding of the ipsilateral high-gamma neuromagnetic activities opens a new window for us to understand the developmental changes of the hemispherical functional lateralization in the motor system...
- Effects of attention and precision of exerted force on beta range EEG-EMG synchronization during a maintained motor contraction task
Neurological Clinic, Albert Ludwigs University, Breisacherstrasse 64, 79106 Freiburg, Germany
Clin Neurophysiol 113:124-31. 2002
..The present study was aimed at investigating the effect of attention and precision level of exerted force on beta range EEG-EMG synchronization...
- Sexual dimorphism in the prenatal digit ratio (2D:4D)
Institute of Biology, Leiden University, PO Box 9516, 2300 RA Leiden, The Netherlands
Arch Sex Behav 39:57-62. 2010
..Therefore, the sexual dimorphism is probably determined by prenatal as well as by postnatal developmental processes...
- Gender differences in financial risk aversion and career choices are affected by testosterone
Kellogg School of Management, Northwestern University, Evanston, IL 60208, USA
Proc Natl Acad Sci U S A 106:15268-73. 2009
..These results suggest that testosterone has both organizational and activational effects on risk-sensitive financial decisions and long-term career choices...
- Maximal voluntary fingertip force production is not limited by movement speed in combined motion and force tasks
Kevin G Keenan
Department of Biomedical Engineering and Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, California 90089, USA
J Neurosci 29:8784-9. 2009
Numerous studies of limbs and fingers propose that force-velocity properties of muscle limit maximal voluntary force production during anisometric tasks, i.e., when muscles are shortening or lengthening...
- Body posture affects tactile discrimination and identification of fingers and hands
Otto Selz Institute for Applied Psychology, Mannheim Centre for Work and Health, University of Mannheim, 68131, Mannheim, Germany
Exp Brain Res 206:47-57. 2010
It is an unresolved question whether the posture of single fingers relative to each other is represented in the brain within an external frame of reference...
- Coordinated force production in multi-finger tasks: finger interaction and neural network modeling
V M Zatsiorsky
Department of Kinesiology, Pennsylvania State University, University Park 16802, USA
Biol Cybern 79:139-50. 1998
During maximal voluntary contraction (MVC) with several fingers, the following three phenomena are observed: (1) the total force produced by all the involved fingers is shared among the fingers in a specific manner (sharing); (2) the ..
- Meta-analysis of digit ratio 2D:4D shows greater sex difference in the right hand
Department of Psychology, Northumbria University, Newcastle upon Tyne NE1 8ST, United Kingdom
Am J Hum Biol 22:619-30. 2010
..Second, to infer the loss of reliability observed in 2D:4D based on self-measured finger lengths...
- Simultaneous measurements of kinematics and fMRI: compatibility assessment and case report on recovery evaluation of one stroke patient
Politecnico di Milano, Bioengineering Dept, NearLab, Piazza L, Da Vinci 32, 20133, Milano, Italy
J Neuroeng Rehabil 7:49. 2010
..Therefore, we have explored a new set-up combining fMRI with an optoelectronic motion capture system, which provides a multi-parameter quantification of the performed motor task...
- Large index-fingertip forces are produced by subject-independent patterns of muscle excitation
F J Valero-Cuevas
Rehabilitation Research and Development Center, Veterans Affairs Palo Alto Health Care System, CA 94304 1200, USA
J Biomech 31:693-703. 1998
- Somatosensory activation of two fingers can be discriminated with ultrahigh-density diffuse optical tomography
Berlin NeuroImaging Center, Charite Universitatsmedizin, Chariteplatz 1, 10117 Berlin, Germany
Neuroimage 59:3201-11. 2012
..Distinct activation patterns for both fingers correlated well with the expected neuroanatomy in five of eight subjects...
- Finger inter-dependence: linking the kinetic and kinematic variables
Sun Wook Kim
Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802, United States
Hum Mov Sci 27:408-22. 2008
We studied the dependence between voluntary motion of a finger and pressing forces produced by the tips of other fingers of the hand...
- Second to fourth digit ratios, male genital development and reproductive health: a clinical study among fertile men and testis cancer patients
Service d Histologie Embryologie, Biologie de la Reproduction CECOS, Hopital Cochin, Paris, France
Int J Androl 34:e49-58. 2011
- Tactile spatial acuity enhancement in blindness: evidence for experience-dependent mechanisms
McMaster Integrative Neuroscience Discovery and Study, McMaster University, Hamilton, Ontario, L8S 4K1 Canada
J Neurosci 31:7028-37. 2011
..tactile spatial acuity of 28 profoundly blind and 55 normally sighted humans on the index, middle, and ring fingers of each hand, and on the lips...
- Fetal development of the hand, digits and digit ratio (2D:4D)
Mehmet Ali Malas
Medical Faculty, Department of Anatomy, Suleyman Demirel University, 32260 Isparta, Turkey
Early Hum Dev 82:469-75. 2006
..The purpose of this study was to investigate growth patterns in human hands, digits and digit ratio (2D:4D) during the fetal period...
- Minireview: Organizational hypothesis: instances of the fingerpost
S Marc Breedlove
Neuroscience Program and Department of Psychology, 108 Giltner Hall, Michigan State University, East Lansing, Michigan 48824 1101, USA
Endocrinology 151:4116-22. 2010
..Thus digit ratios offer a valid test of the organizational hypothesis that androgens act early in life to masculinize various human behaviors...
- The role of somatotopy and body posture in the integration of texture across the fingers
Roberta D Roberts
Behavioural Brain Sciences Centre, University of Birmingham, Birmingham, UK
Psychol Sci 21:476-83. 2010
In two experiments, we investigated the automatic integration of touch across the fingers. Participants made judgments about the roughness of sequences of textures presented to one finger while simultaneously feeling textures of varying ..
- A randomized controlled pilot study to obtain the best estimate of the size of the effect of a thermoplastic resting splint on spasticity in the stroke-affected wrist and fingers
J L Sheehan
School of Occupational Therapy, La Trobe University and The Royal Melbourne Hospital, Royal Park Campus, Victoria, Australia
Clin Rehabil 20:1032-7. 2006
..To obtain the best estimate of the size of the effect of a thermoplastic resting splint on spasticity in the stroke-affected upper limb...
- Tactile feedback and timing accuracy in piano performance
Department of Psychology, McGill University, 1205 Dr Penfield Avenue, Montreal, QC, H3A 1B1, Canada
Exp Brain Res 186:471-9. 2008
..These findings suggest that sensory information available at finger-key contact enhances the timing accuracy of finger movements in piano performance...
- On the relations between affordance and representation of the agent's effector
Dipartimento di Neuroscienze, Universita di Parma, Via Volturno 39, 43100 Parma, Italy
Exp Brain Res 180:421-33. 2007
..Finally, our data confirm the influence of semantics on the control of arm movements, though less strong than that due to visual input...
- Grasp with hand and mouth: a kinematic study on healthy subjects
Istituto di Fisiologia Umana, I 43100 Parma, Italy
J Neurophysiol 86:1685-99. 2001
..size while opening the mouth (experiments 1 and 3), or extending the other forearm (experiment 4), or the fingers of the other hand (experiment 5)...
- Bio-inspired sensorization of a biomechatronic robot hand for the grasp-and-lift task
B B Edin
Physiology Section, Department of Integrative Medical Biology, Umea University, SE 901 87 Umea, Sweden
Brain Res Bull 75:785-95. 2008
..To accomplish this we have developed (1) a contact sensor that can be applied to the surface of the robotic fingers and that show a sensitivity to indentation and a spatial resolution comparable to that of the human glabrous skin,..
- Touch and temporal behavior of grand piano actions
Austrian Research Institute for Artificial Intelligence OFAI, Freyung 6 6, 1010 Vienna, Austria
J Acoust Soc Am 118:1154-65. 2005
..Constant temporal behavior over type of touch and low compression properties of the parts of the action (reflected in key bottom contact times) were hypothesized to be indicators for instrumental quality...
- Second to fourth digit ratio, testosterone and perceived male dominance
Human Cognitive Neuroscience Unit, School of Psychology and Sport Sciences, Northumberland Building, Northumbria University, Newcastle upon Tyne NE1 8ST, UK
Proc Biol Sci 270:2167-72. 2003
..We conclude that facial dominance and masculinity reflect a male's perceived status rather than his physical attraction to women...
- Optimal feedback control as a theory of motor coordination
Department of Cognitive Science, University of California, San Diego, 9500 Gilman Dr, La Jolla, California 92093 0515, USA
Nat Neurosci 5:1226-35. 2002
..We present experimental results from a range of motor tasks to support this theory...