High-density optical mapping of the human somatosensory cortex to vibrotactile stimulation
نویسندگان
چکیده
stimulation Stefan P. Koch1, Jan Mehnert1,2, Christoph Schmitz1,3, Susanne Holtze1, Arno Villringer1,2,4, Hellmuth Obrig1,2,5 1Berlin NeuroImaging Center, Charité Berlin, Germany/2Max-Planck Institute for Human Cognitive and Brain Science Leipzig, Germany/3NIRx Medizintechnik GmbH, Berlin, Germany/ 4Berlin School of Mind and Brain, Humboldt-University/ 5Day Clinic for Cognitive Neurology, University Hospital Leipzig, Germany
منابع مشابه
High-Resolution Optical Functional Mapping of the Human Somatosensory Cortex
Non-invasive optical imaging of brain function has been promoted in a number of fields in which functional magnetic resonance imaging (fMRI) is limited due to constraints induced by the scanning environment. Beyond physiological and psychological research, bedside monitoring and neurorehabilitation may be relevant clinical applications that are yet little explored. A major obstacle to advocate ...
متن کاملSuppression of vibrotactile discrimination by transcranial magnetic stimulation of primary somatosensory cortex.
A number of human and animal studies have reported a differential representation of the frequency of vibrotactile stimuli in the somatosensory cortices: neurons in the primary somatosensory cortex (SI) are predominantly responsive to lower frequencies of tactile vibration, and those in the secondary somatosensory cortex (SII) are predominantly responsive to higher frequencies. We employed trans...
متن کاملInvolvement of human primary somatosensory cortex in vibrotactile detection depends on task demand
UNLABELLED Detecting and discriminating sensory stimuli are fundamental functions of the nervous system. Electrophysiological and lesion studies suggest that macaque primary somatosensory cortex (SI) is critically involved in discriminating between stimuli, but is not required simply for detecting stimuli. By contrast, transcranial magnetic stimulation (TMS) studies in humans have shown near-co...
متن کاملMapping quantal touch using 7 Tesla functional magnetic resonance imaging and single-unit intraneural microstimulation
Using ultra-high field 7 Tesla (7T) functional magnetic resonance imaging (fMRI), we map the cortical and perceptual responses elicited by intraneural microstimulation (INMS) of single mechanoreceptive afferent units in the median nerve, in humans. Activations are compared to those produced by applying vibrotactile stimulation to the unit's receptive field, and unit-type perceptual reports are ...
متن کاملThe neural dynamics of somatosensory processing and adaptation across childhood: a high-density electrical mapping study.
Young children are often hyperreactive to somatosensory inputs hardly noticed by adults, as exemplified by irritation to seams or labels in clothing. The neurodevelopmental mechanisms underlying changes in sensory reactivity are not well understood. Based on the idea that neurodevelopmental changes in somatosensory processing and/or changes in sensory adaptation might underlie developmental dif...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2009