This project is developing a system that allows manipulation of complex displays in real time, contingent on the eye position of an observer with a free head. This is crucial for understanding how the successive views of a scene generated by observer motion are related. Achieving an appropriate relationship between successive retinal images is fundamental for understanding the reference frames underlying (a) perception of a stable visual world, (b) short- and long-term visual spatial memory, and (c) much of our motor interaction with the world. There are three major classes of questions we can investigate making saccade-contingent display changes: (1) What is the nature of the visual information retained from previous views? (2) What are the reference frames for programming the various eye/head movements in the task? (3) What is the nature of the subcomponents of the task?

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR009283-03
Application #
5225749
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
3
Fiscal Year
1996
Total Cost
Indirect Cost
Rothkopf, Constantin A; Ballard, Dana H (2013) Modular inverse reinforcement learning for visuomotor behavior. Biol Cybern 107:477-90
Fernandez, Roberto; Duffy, Charles J (2012) Early Alzheimer's disease blocks responses to accelerating self-movement. Neurobiol Aging 33:2551-60
Velarde, Carla; Perelstein, Elizabeth; Ressmann, Wendy et al. (2012) Independent deficits of visual word and motion processing in aging and early Alzheimer's disease. J Alzheimers Dis 31:613-21
Rothkopf, Constantin A; Ballard, Dana H (2010) Credit assignment in multiple goal embodied visuomotor behavior. Front Psychol 1:173
Huxlin, Krystel R; Martin, Tim; Kelly, Kristin et al. (2009) Perceptual relearning of complex visual motion after V1 damage in humans. J Neurosci 29:3981-91
Rothkopf, Constantin A; Ballard, Dana H (2009) Image statistics at the point of gaze during human navigation. Vis Neurosci 26:81-92
Jovancevic-Misic, Jelena; Hayhoe, Mary (2009) Adaptive gaze control in natural environments. J Neurosci 29:6234-8
Kavcic, Voyko; Ni, Hongyan; Zhu, Tong et al. (2008) White matter integrity linked to functional impairments in aging and early Alzheimer's disease. Alzheimers Dement 4:381-9
Droll, Jason A; Hayhoe, Mary M; Triesch, Jochen et al. (2005) Task demands control acquisition and storage of visual information. J Exp Psychol Hum Percept Perform 31:1416-38
Bayliss, Jessica D; Inverso, Samuel A; Tentler, Aleksey (2004) Changing the P300 brain computer interface. Cyberpsychol Behav 7:694-704

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