Nijhawan/Visual Prediction: BBS Call for Commentators

================================================================== *** CALL RESPONSE INSTRUCTIONS *** ================================================================== Please DO NOT respond to this email. Please note that this is NOT a formal invitation. If you wish to submit a proposal for commentary and/or suggest potential commentators, please go to the Online Commentary Proposal System at the following URL: http://www.bbsonline.org/perl/commentary/commproposal?authordir=Nijhawan-04… * If you only wish to suggest potential commentators, please ignore prompts to submit a proposal with expertise information. * If you experience technical difficulties, please email bbs(a)bbsonline.org. * Please respond to this Call no later than October 11, 2007 NOTE: Behavioral and Brain Sciences (BBS) is an international, interdisciplinary journal providing Open Peer Commentary on important and controversial current research in the biobehavioral and cognitive sciences. Commentators must be BBS Associates, or suggested by a BBS Associate. If you are not a BBS Associate, please follow the instructions linked below: http://www.bbsonline.org/Instructions/associnst.html ================================================================== ** Target Article Information ** ================================================================== To help you decide whether you would be an appropriate commentator for this article, an unedited, uncorrected target article is retrievable at the URL that follows the abstract and keywords below. This unedited draft has been prepared only for potential commentators who wish to nominate themselves for formal commentary invitation. Please DO NOT write a commentary until you receive a formal invitation. If you are invited to submit a commentary, a copyedited, corrected version of this paper will be posted in the invitation letter. The commentary invitation list is compiled by the Editors so as to balance proposals, areas of expertise, and frequency of prior commentaries in BBS. TITLE: Visual Prediction: Psychophysics and neurophysiology of compensation for time delays AUTHOR: Romi Nijhawan ABSTRACT: A necessary consequence of the nature of neural transmission systems is that as change in the physical state of a time-varying event takes place, delays produce error between the instantaneous registered state and the external state. Another source of delay is the transmission of internal motor commands to muscles and the inertia of the musculoskeletal system. How does the central nervous system compensate for these pervasive delays? Although it has been argued that delay compensation occurs late in the motor planning stages, even the earliest visual processes, like phototransduction contribute significantly to delays. I argue here that compensation is not an exclusive property of the motor system, but a pervasive feature of CNS organization. Although, the motor planning system may contain a highly flexible compensation mechanism, accounting not just for delays but also variability in delays (e.g. due to variations is luminance contrast, internal body temperature, muscle fatigue etc.), visual mechanisms also contribute to compensation. Previous suggestions of this notion of ‘visual prediction’ led to a lively debate producing re-examination of previous arguments, new analyses, and review of experiments presented here. Understanding visual prediction will inform our theories of sensory processes, visual perception, and impact our notion of visual awareness. KEYWORDS: compensation, time delays, feedforward control, flash-lag, lateral interactions, neural representation, internal models, biased competition, reference frames, visual awareness FULL TEXT: http://www.bbsonline.org/Preprints/Nijhawan-04192006/Referees/ ================================================================== *** CALL RESPONSE INSTRUCTIONS *** ================================================================== Please DO NOT respond to this email. Please note that this is NOT a formal invitation. If you wish to submit a proposal for commentary and/or suggest potential commentators, please go to the Online Commentary Proposal System at the following URL: http://www.bbsonline.org/perl/commentary/commproposal?authordir=Nijhawan-04… * If you only wish to suggest potential commentators, please ignore prompts to submit a proposal with expertise information. * If you experience technical difficulties, please email bbs(a)bbsonline.org. * Please respond to this Call no later than October 11, 2007 NOTE: Behavioral and Brain Sciences (BBS) is an international, interdisciplinary journal providing Open Peer Commentary on important and controversial current research in the biobehavioral and cognitive sciences. Commentators must be BBS Associates, or suggested by a BBS Associate. If you are not a BBS Associate, please follow the instructions linked below: http://www.bbsonline.org/Instructions/associnst.html ================================================================== ================================================================== Barbara Finlay - Editor Paul Bloom - Editor Behavioral and Brain Sciences bbs(a)bbsonline.org http://www.bbsonline.org -------------------------------------------------------------------