Research Topics
| Jorn DiedrichsenSummaryAffiliation: Johns Hopkins University Country: USA Publications
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Detail Information
Publications
Detecting and adjusting for artifacts in fMRI time series dataJorn Diedrichsen
Department of Biomedical Engineering, Laboratory for Computational Motor Control, Johns Hopkins University School of Medicine, Baltimore, 720 Rutland Ave, 416 Traylor Building, MD 21205 2195, USA
Neuroimage 27:624-34. 2005..The new method may be particularly useful for studies that involve special populations (e.g., children or elderly) where sporadic, artifact-generating events are more likely...
Cerebellar involvement in anticipating the consequences of self-produced actions during bimanual movementsJorn Diedrichsen
Department of Biomedical Engineering, Johns Hopkins University, 720 Rutland Ave, 416 Traylor Bldg, Baltimore, MD 21205, USA
J Neurophysiol 93:801-12. 2005..Furthermore, this structure appears to be essential for the accurate timing of previously learned behaviors. The patients with cerebellar damage showed poorly timed adjustments with the APA beginning earlier than in healthy participants...- Immediate spatial distortions of pointing movements induced by visual landmarksJorn Diedrichsen
University of California, Berkeley, California, USA
Percept Psychophys 66:89-103. 2004..We argue that even early memory representations for pointing movements are influenced by visual information in the surrounding visual field... - Independent on-line control of the two hands during bimanual reachingJorn Diedrichsen
Department of Psychology, University of California, Berkeley, USA
Eur J Neurosci 19:1643-52. 2004..The subtle interference observed between the arms reflects interactions between target-related representations in visual coordinates rather than between movement-related representations in joint- or muscle-coordinates... - The role of the corpus callosum in the coupling of bimanual isometric force pulsesJorn Diedrichsen
Department of Psychology, University of California, Berkeley, California 94720 5800, USA
J Neurophysiol 90:2409-18. 2003..These results are congruent with the hypothesis that interference related to response selection and planning of bimanual force pulses arises from callosal interactions... - Neural correlates of reach errorsJorn Diedrichsen
Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21205, USA
J Neurosci 25:9919-31. 2005..These findings indicate a neural and behavioral dissociation between errors that lead to switching of behavioral goals and errors that lead to adaptation of internal models of limb dynamics and kinematics... - Goal-selection and movement-related conflict during bimanual reaching movementsJorn Diedrichsen
Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21205, USA
Cereb Cortex 16:1729-38. 2006..These results suggest distinct neural loci for 2 forms of constraint on our ability to perform bimanual reaching movements... - Sensory prediction errors drive cerebellum-dependent adaptation of reachingYa weng Tseng
Dept of Neurology, The Johns Hopkins School of Medicine, Kennedy Krieger Institute, Baltimore, MD 21205, USA
J Neurophysiol 98:54-62. 2007..Therefore adaptation to visuomotor perturbations depends on the cerebellum and is driven by the mismatch between predicted and actual sensory outcome of motor commands... - Reach adaptation: what determines whether we learn an internal model of the tool or adapt the model of our arm?Joann Kluzik
Department of Neurology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
J Neurophysiol 100:1455-64. 2008..Gradual changes in the tool's dynamics increased the extent to which the nervous system recalibrated the model of the subject's own arm... - Why does the brain predict sensory consequences of oculomotor commands? Optimal integration of the predicted and the actual sensory feedbackSiavash Vaziri
Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21205, USA
J Neurosci 26:4188-97. 2006.... - Ipsilateral motor cortex activity during unimanual hand movements relates to task complexityTimothy Verstynen
Deptartment of Psychology, University of California, Berkeley, CA 94720, USA
J Neurophysiol 93:1209-22. 2005..These findings indicate a prominent role of left hemisphere in the execution of complex movements independent of the sequential nature of the task... - Comparing continuous and discrete movements with fMRIJorn Diedrichsen
Department of Psychology, University of California at Berkeley, Berkeley, California 94720, USA
Ann N Y Acad Sci 978:509-10. 2002 
Encoding of sensory prediction errors in the human cerebellumJohn Schlerf
Department of Physical Medicine and Rehabilitation, Johns Hopkins School of Medicine, Baltimore, Maryland 21205, USA
J Neurosci 32:4913-22. 2012..This effect was similar for the two error types. The results provide evidence for the encoding of errors resulting from either the unexpected presence or unexpected absence of sensory stimulation in the human cerebellum...- Disrupted timing of discontinuous but not continuous movements by cerebellar lesionsRebecca M C Spencer
Department of Psychology, University of California, Berkeley, 3210 Tolman Hall 1650, Berkeley, CA 94720, USA
Science 300:1437-9. 2003..The requirement for explicit temporal representation provides a parsimonious account of cerebellar involvement in a range of tasks... - Bimanual interference associated with the selection of target locationsJorn Diedrichsen
Department of Psychology, University of California, Berkeley, 94720 1650, USA
J Exp Psychol Hum Percept Perform 29:64-77. 2003..Interference observed during bimanual reaching appears to reflect difficulty in segregating the response rules assigned to each hand... - Active learning: learning a motor skill without a coachVincent S Huang
Laboratory for Computational Motor Control, Department of Biomedical Engineering, John Hopkins School of Medicine, Baltimore, Maryland, USA
J Neurophysiol 100:879-87. 2008..While we show that these algorithms do not provide an adequate description of human behavior, our results suggest ways to improve human motor learning by helping people choose an optimal training sequence... - Transcranial magnetic stimulation of posterior parietal cortex affects decisions of hand choiceFlavio T P Oliveira
Department of Psychology and Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720, USA
Proc Natl Acad Sci U S A 107:17751-6. 2010..These results are unique in providing causal evidence that the posterior parietal cortex is involved in decisions of hand choice... - Anticipatory adjustments in the unloading task: is an efference copy necessary for learning?Jorn Diedrichsen
Department of Psychology, University of California, Berkeley, CA 94720, USA
Exp Brain Res 148:272-6. 2003..These results indicate that a voluntary action is necessary to acquire an anticipatory adjustment in the unloading task... - Dissociating timing and coordination as functions of the cerebellumJorn Diedrichsen
Laboratory for Computational Motor Control, Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA
J Neurosci 27:6291-301. 2007..g., the arm) to coordinate actions of another effector (the thumb)... - The cerebellum and event timingRichard B Ivry
Department of Psychology, University of California, Berkeley, California, USA
Ann N Y Acad Sci 978:302-17. 2002..While the cerebellum likely contributes to performance of a wide range of skilled behaviors, it appears to be especially important when the tasks entail event timing... - A spatially unbiased atlas template of the human cerebellumJorn Diedrichsen
Laboratory for Computational Motor Control, Department for Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
Neuroimage 33:127-38. 2006..C. (2002a) Surface-based atlases of cerebellar cortex in the human, macaque, and mouse. Ann. N. Y. Acad. Sci. 978:468-479.) atlas of one individual, the "colin27"-brain... - Dissociating task-set selection from task-set inhibition in the prefrontal cortexUlrich Mayr
Department of Psychology, University of Oregon, Eugene 97403, USA
J Cogn Neurosci 18:14-21. 2006..Although left frontal patients showed normal inhibition, right frontal patients showed no evidence for inhibition. These results suggest a neurocognitive dissociation between task-set selection and inhibition... - Callosotomy patients exhibit temporal uncoupling during continuous bimanual movementsSteven W Kennerley
University of California, Berkeley, 3210 Tolman Hall #1650, Berkeley, California 94720, USA
Nat Neurosci 5:376-81. 2002..We propose a subcortical locus of temporal coupling for movements involving discrete events. In contrast, synchronization between the hands during continuous movements depends on interhemispheric transmission across the corpus callosum...