caa a22 4500 445350318 CHVBK 20180317142841.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s00221-011-2802-0 doi (NATIONALLICENCE)springer-10.1007/s00221-011-2802-0 Temporal processing of active and passive head movement [Elektronische Daten] [Michael Barnett-Cowan, Laurence Harris] The brain can know about an active head movement even in advance of its execution by means of an efference copy signal. In fact, sensory correlates of active movements appear to be suppressed. Passive disturbances of the head, however, can be detected only by sensory feedback. Might the perceived timing of an active head movement be speeded relative to the perception of a passive movement due to the efferent copy (anticipation hypothesis) or delayed because of sensory suppression (suppression hypothesis)? We compared the perceived timing of active and passive head movement using other sensory events as temporal reference points. Participants made unspeeded temporal order and synchronicity judgments comparing the perceived onset of active and passive head movement with the onset of tactile, auditory and visual stimuli. The comparison stimuli had to be delayed by about 45ms to appear coincident with passive head movement or by about 80ms to appear aligned with an active head movement. The slow perceptual reaction to vestibular activation is compatible with our earlier study using galvanic stimulation (Barnett-Cowan and Harris 2009). The unexpected additional delay in processing the timing of an active head movement is compatible with the suppression hypothesis and is discussed in relation to suppression of vestibular signals during self-generated head movement. Springer-Verlag, 2011 Active versus passive nationallicence Efferent copy nationallicence Multisensory nationallicence Sensory suppression nationallicence Synchronicity judgments nationallicence Temporal order judgments nationallicence Time perception nationallicence Vestibular nationallicence Barnett-Cowan Michael Multisensory Integration Laboratory, Centre for Vision Research, Department of Psychology, York University, 4700 Keele Street, M3J 1P3, Toronto, ON, Canada aut Harris Laurence Multisensory Integration Laboratory, Centre for Vision Research, Department of Psychology, York University, 4700 Keele Street, M3J 1P3, Toronto, ON, Canada aut Experimental Brain Research Springer-Verlag 214/1(2011-09-01), 27-35 0014-4819 214:1<27 2011 214 221 https://doi.org/10.1007/s00221-011-2802-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00221-011-2802-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Barnett-Cowan Michael Multisensory Integration Laboratory, Centre for Vision Research, Department of Psychology, York University, 4700 Keele Street, M3J 1P3, Toronto, ON, Canada aut NATIONALLICENCE 700 1- Harris Laurence Multisensory Integration Laboratory, Centre for Vision Research, Department of Psychology, York University, 4700 Keele Street, M3J 1P3, Toronto, ON, Canada aut NATIONALLICENCE 773 0- Experimental Brain Research Springer-Verlag 214/1(2011-09-01), 27-35 0014-4819 214:1<27 2011 214 221 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer