Encoding of vibrissal active touch. Export

@article{Szwed2003, abstract = {Mammals acquire much of their sensory information by actively moving their sensory organs. Yet, the principles of encoding by active sensing are not known. Here we investigated the encoding principles of active touch by rat whiskers (vibrissae). We induced artificial whisking in anesthetized rats and recorded from first-order neurons in the trigeminal ganglion. During active touch, first-order trigeminal neurons presented a rich repertoire of responses, which could not be inferred from their responses to passive deflection stimuli. Individual neurons encoded four specific events: whisking, contact with object, pressure against object, and detachment from object. Whisking-responsive neurons fired at specific deflection angles, reporting the actual whiskers' position with high precision. Touch-responsive neurons encoded the horizontal coordinate of objects' position by spike timing. These findings suggest two specific encoding-decoding schemes for horizontal object position in the vibrissal system.}, author = {Szwed, Marcin and Bagdasarian, Knarik and Ahissar, Ehud}, citeulike-article-id = {3651474}, institution = {Department of Neurobiology, The Weizmann Institute, 76100 Rehovot, Israel.}, journal = {Neuron}, keywords = {action, analysis, and, animals, cell, classificationphysiology, computer-assisted, cortex, count, cytologyphysiology, factors, file-import-08-11-21, ganglion, implants, male, models, neurological, neurons, numerical, perception, physical, physiology, potentials, proprioception, prostheses, rats, reaction, sensation, sensory, somatosensory, stimulation, thresholds, time, touch, trigeminal, vibrissae, viva, wistar}, month = {Oct}, number = {3}, pages = {621--630}, posted-at = {2008-11-21 15:39:40}, priority = {2}, title = {Encoding of vibrissal active touch.}, volume = {40}, year = {2003} }

TY - JOUR ID - Szwed2003 L3 - citeulike-article-id:3651474 N2 - Mammals acquire much of their sensory information by actively moving their sensory organs. Yet, the principles of encoding by active sensing are not known. Here we investigated the encoding principles of active touch by rat whiskers (vibrissae). We induced artificial whisking in anesthetized rats and recorded from first-order neurons in the trigeminal ganglion. During active touch, first-order trigeminal neurons presented a rich repertoire of responses, which could not be inferred from their responses to passive deflection stimuli. Individual neurons encoded four specific events: whisking, contact with object, pressure against object, and detachment from object. Whisking-responsive neurons fired at specific deflection angles, reporting the actual whiskers' position with high precision. Touch-responsive neurons encoded the horizontal coordinate of objects' position by spike timing. These findings suggest two specific encoding-decoding schemes for horizontal object position in the vibrissal system. IS - 3 JF - Neuron EP - 630 TI - Encoding of vibrissal active touch. VL - 40 SP - 621 KW - action KW - analysis KW - and KW - animals KW - cell KW - classificationphysiology KW - computer-assisted KW - cortex KW - count KW - cytologyphysiology KW - factors KW - file-import-08-11-21 KW - ganglion KW - implants KW - male KW - models KW - neurological KW - neurons KW - numerical KW - perception KW - physical KW - physiology KW - potentials KW - proprioception KW - prostheses KW - rats KW - reaction KW - sensation KW - sensory KW - somatosensory KW - stimulation KW - thresholds KW - time KW - touch KW - trigeminal KW - vibrissae KW - viva KW - wistar AU - Szwed, Marcin AU - Bagdasarian, Knarik AU - Ahissar, Ehud PY - 2003/Oct// ER -