Research Topics
Genomes and GenesSpecies | Peter FranssonSummaryAffiliation: Karolinska Institutet Country: Sweden Publications
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Detail Information
Publications
Fingersomatotopy in area 3b: an fMRI-studyDanielle van Westen
Dept of Diagnostic Radiology, Lund University Hospital, 221 85 Lund, Sweden
BMC Neurosci 5:28. 2004..The spatial distribution for all fingers' peak activation was determined and group as well as individual analysis was performed...
On the effects of spatial filtering--a comparative fMRI study of episodic memory encoding at high and low resolutionPeter Fransson
MR Research Center, Department of Clinical Neuroscience, Karolinska Institutet Karolinska Hospital, Stockholm, Sweden
Neuroimage 16:977-84. 2002....- Spontaneous low-frequency BOLD signal fluctuations: an fMRI investigation of the resting-state default mode of brain function hypothesisPeter Fransson
MR Research Center, Cognitive Neurophysiology, Department of Clinical Neuroscience, Karolinska Institute Karolinska University Hospital, Stockholm, Sweden
Hum Brain Mapp 26:15-29. 2005.... 
Anxiety and depressive symptoms in fibromyalgia are related to poor perception of health but not to pain sensitivity or cerebral processing of painKarin B Jensen
Stockholm Brain Institute, Osher Center for Integrative Medicine, Karolinska Institutet, Stockholm, Sweden
Arthritis Rheum 62:3488-95. 2010....- A prefrontal non-opioid mechanism in placebo analgesiaPredrag Petrovic
Cognitive Neurophysiology Research Group, Stockholm Brain Institute, Osher Center for Integrative Medicine, Karolinska Institutet, Stockholm, Sweden
Pain 150:59-65. 2010..Our results thus support that placebo is different from specific treatment with a prefrontal top-down influence on rACC... - Spontaneous brain activity in the newborn brain during natural sleep--an fMRI study in infants born at full termPeter Fransson
Department of Clinical Neuroscience, Stockholm Brain Institute, Karolinska Institute, Stockholm, Sweden
Pediatr Res 66:301-5. 2009..In addition, we found evidence for a resting-state network that enclosed the bilateral basal ganglia... - Placebo in emotional processing--induced expectations of anxiety relief activate a generalized modulatory networkPredrag Petrovic
Cognitive Neurophysiology Research Group R2 01, Department of Clinical Neuroscience, Karolinska Institutet, Karolinska Hospital, Stockholm, Sweden
Neuron 46:957-69. 2005..Thus, the placebo effect may be considered to be a general process of modulation induced by the subjects' expectations... - Emotional perception modulated by an opioid and a cholecystokinin agonistKatarina Gospic
MR Centre, Department of Clinical Neuroscience, Karolinska Institutet, N 8, Karolinska University Hospital, 17176 Stockholm, Sweden
Psychopharmacology (Berl) 197:295-307. 2008..In this behavioral study, we generalize this idea and suggest that CCK and opioids can modulate the processing of other external signals, e.g., visual stimuli rather than only noxious input... - The functional architecture of the infant brain as revealed by resting-state fMRIPeter Fransson
Department of Clinical Neuroscience, Karolinska Institute, SE 171 76 Stockholm, Sweden
Cereb Cortex 21:145-54. 2011..Our findings suggest that the functional network architecture in infants is linked to support tasks that are of a perception-action nature... - Distinct contributions of the dorsolateral prefrontal and orbitofrontal cortex during emotion regulationArmita Golkar
Stockholm Brain Institute, Department of Clinical Neuroscience, Karolinska Institutet, Solna, Sweden
PLoS ONE 7:e48107. 2012..We suggest that relative to the lateral OFC, the DLPFC serves a more general role in emotion regulation, perhaps by reflecting the cognitive demand that is inherent to the regulation task... - Limbic justice--amygdala involvement in immediate rejection in the Ultimatum GameKatarina Gospic
MR Research Center and Osher Center for Integrative Medicine, Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
PLoS Biol 9:e1001054. 2011..Our results also prompt an ethical discussion as we demonstrated that a commonly used drug influences core functions in the human brain that underlie individual autonomy and economic decision making... - 5-HTTLPR and COMTval158met genotype gate amygdala reactivity and habituationTina B Lonsdorf
Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
Biol Psychol 87:106-12. 2011..Our results support that 5-HTTLPR s-carriers and COMT met/met carriers may be more sensitive to the detection of biologically and socially relevant information and suggest a mechanism behind this for the 5-HTTLPR... - Resting-state networks in the infant brainPeter Fransson
Magnetic Resonance Research Center, Department of Clinical Neuroscience, Stockholm Brain Institute, Karolinska Institute, SE 171 77 Stockholm, Sweden
Proc Natl Acad Sci U S A 104:15531-6. 2007..The potential link between the emergence of behavior and patterns of resting-state activity in the infant brain is discussed... - How default is the default mode of brain function? Further evidence from intrinsic BOLD signal fluctuationsPeter Fransson
MR Research Center, Cognitive Neurophysiology, Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
Neuropsychologia 44:2836-45. 2006.... - Evidence for thalamic involvement in the thermal grill illusion: an FMRI studyFredrik Lindstedt
Department of Clinical Neuroscience, Osher Center for Integrative Medicine, Stockholm Brain Institute, Karolinska Institutet, Stockholm, Sweden
PLoS ONE 6:e27075. 2011..The TGI is an unpleasant/painful sensation from touching juxtapositioned bars of cold and warm innocuous temperatures... - The precuneus/posterior cingulate cortex plays a pivotal role in the default mode network: Evidence from a partial correlation network analysisPeter Fransson
MR Research Center, Department of Clinical Neuroscience, Stockholm Brain Institute, Karolinska Institute, Stockholm, Sweden
Neuroimage 42:1178-84. 2008..The suggested pivotal role of the precuneus/posterior cingulate cortex in the default mode network is discussed... - Evidence of dysfunctional pain inhibition in Fibromyalgia reflected in rACC during provoked painKarin B Jensen
Stockholm Brain Institute, Osher Center for Integrative Medicine, Karolinska Institutet, Stockholm, Sweden
Pain 144:95-100. 2009.... - Isolating the retrieval of imagined pictures during episodic memory: activation of the left precuneus and left prefrontal cortexBrian Nils Lundstrom
Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
Neuroimage 20:1934-43. 2003..This suggests that previously imagined pictures provide a context with which encoded words can be more strongly associated... - Effects of L-dopa and oxazepam on resting-state functional magnetic resonance imaging connectivity: a randomized, cross-sectional placebo studyPär Flodin
Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
Brain Connect 2:246-53. 2012.... - Language lateralization in children aged 10 to 11 years: a combined fMRI and dichotic listening studyFritjof Norrelgen
Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
PLoS ONE 7:e51872. 2012..The method is intended for pediatric patients prior to epilepsy surgery. To evaluate the potential clinical usefulness of the method we first wanted to assess data from a group of healthy children... - A template for spatial normalisation of MR images of the rat brainPetra Schweinhardt
Department of Clinical Neuroscience, MR Research Center, Karolinska Institutet, S-171 77 Stockholm, Sweden
J Neurosci Methods 129:105-13. 2003..The template image volumes together with the necessary modifications to the SPM software code can be downloaded from http://mr.imaging-ks.nu/expmr.htm... - Keeping it short: a comparison of methods for brief picture presentationStefan Wiens
Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
Psychol Sci 15:282-5. 2004..However, our results may not generally apply to all displays, so we advise researchers to validate the presentation parameters of their displays. The procedure described here may be useful for that purpose... - Neural representation of binding lexical signs and words in the episodic buffer of working memoryMary Rudner
The Swedish Institute for Disability Research, Department of Behavioural Sciences, Linkoping University, S 581 83 Linkoping, Sweden
Neuropsychologia 45:2258-76. 2007..Together, these findings support the notion of a module that mediates between codes and sources, such as the episodic buffer, and further our understanding of its nature... - fMRI activity in the medial temporal lobe during famous face processingChristina Elfgren
Division of Psychogeriatrics, Dept of Clinical Sciences, Lund, Lund University Hospital, SE 221 85 Lund, Sweden
Neuroimage 30:609-16. 2006..Our results suggest that the hippocampus may be centrally involved in the intentional retrieval of semantic memories while the perirhinal cortex is associated with the incidental recognition of semantic information... - Sex-differential brain activation during exposure to female and male facesHakan Fischer
Aging Research Center, Division of Geriatric Epidemiology, NEUROTEC Karolinska Institutet, Box 6401, 11382 Stockholm, Sweden
Neuroreport 15:235-8. 2004..The sex-differential nature of this activation pattern may reflect sex differences in cognitive style and attentional processes when confronting faces of the opposite sex... - Age-differential patterns of brain activation during perception of angry facesHakan Fischer
Aging Research Center, Division of Geriatric Epidemiology, Neurotec, Karolinska Institute, Olivecronas vag 4, Box 6401, 113 82 Stockholm, Sweden
Neurosci Lett 386:99-104. 2005.... - Sustained and transient neural modulations in prefrontal cortex related to declarative long-term memory, working memory, and attentionPetter Marklund
Department of Psychology, Umea University, Umea, Sweden
Cortex 43:22-37. 2007.... - Enhanced occipital and anterior cingulate activation in men but not in women during exposure to angry and fearful male facesHakan Fischer
Aging Research Center, Karolinska Institute, Box 6401, 113 82 Stockholm, Sweden
Cogn Affect Behav Neurosci 4:326-34. 2004..Hence, we suggest that the elevated occipital and anterior cingulate activation in men during confrontation with other angry and fearful males may reflect enhanced vigilance in a potentially dangerous situation...