Abstract

The project examines the visual pathways involved in motion perception. Several methods will be used to asses whether an attribute such as color or stero is sensed by a low-level motion system or a high level attentional feature tracking system. In addition, opposing motion stimuli will test whether low level mechanisms represent a single class of motion detectors or several distinct classes. Tests of cortically color blind patients will analyze the motion response to color stimuli which do not rely on color sensations. The proposal will also evaluate the high level motion system based on attentive tracking - a pursuit system that involves attention rather than eye movements. The second half of the project will analyze the nature of the attentive mechanism, including whether attentive tracking is a real motion system in that it demonstrates predictive aspects. In addition, studies are proposed to measure the spatial resolution of attention during tracking.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Eye Institute (NEI)
Type
Research Project (R01)
Project #
2R01EY009258-05
Application #
2162867
Study Section
Special Emphasis Panel (ZRG1-VISA (01))
Project Start
1991-08-01
Project End
1999-07-31
Budget Start
1995-08-01
Budget End
1996-07-31
Support Year
5
Fiscal Year
1995
Total Cost
Indirect Cost

  Institution

Name
Harvard University
Department
Psychology
Type
Schools of Arts and Sciences
DUNS #
071723621
City
Cambridge
State
MA
Country
United States
Zip Code
02138

  Publications

Wu, Daw-An; Cavanagh, Patrick (2016) Where are you looking? Pseudogaze in afterimages. J Vis 16:6
Störmer, Viola S; Alvarez, George A; Cavanagh, Patrick (2014) Within-hemifield competition in early visual areas limits the ability to track multiple objects with attention. J Neurosci 34:11526-33
Macdonald, James S P; Cavanagh, Patrick; VanRullen, Rufin (2014) Attentional sampling of multiple wagon wheels. Atten Percept Psychophys 76:64-72
Cavanagh, Patrick; Anstis, Stuart (2013) The flash grab effect. Vision Res 91:8-20
Franconeri, Steven L; Alvarez, George A; Cavanagh, Patrick (2013) Flexible cognitive resources: competitive content maps for attention and memory. Trends Cogn Sci 17:134-41
Kosovicheva, Anna A; Maus, Gerrit W; Anstis, Stuart et al. (2012) The motion-induced shift in the perceived location of a grating also shifts its aftereffect. J Vis 12:
Cohen, Michael A; Cavanagh, Patrick; Chun, Marvin M et al. (2012) The attentional requirements of consciousness. Trends Cogn Sci 16:411-7
Cavanagh, Patrick (2011) Visual cognition. Vision Res 51:1538-51
Hunt, Amelia R; Cavanagh, Patrick (2011) Remapped visual masking. J Vis 11:13
Holcombe, Alex O; Linares, Daniel; Vaziri-Pashkam, Maryam (2011) Perceiving spatial relations via attentional tracking and shifting. Curr Biol 21:1135-9

Showing the most recent 10 out of 65 publications