Human Information Processing Laboratory (HIPLab)

Welcome to the Human Information Processing Laboratory in the Department of Cognitive Sciences and Institute for Mathematical Behavioral Science at the University of California, Irvine (UCI).

Fields of Research

Empirical studies of human information processing, visual memory systems, attention, visual perception.
Mathematical, computational, and neural models of visual processes: light adaptation, temporal sensitivity, contrast detection, motion and texture perception, stereopsis, attention, short-term memory systems.
Brain imaging: EEG, MEG, fMRI.


George Sperling, Professor
Peng Sun, Associate Project Scientist

Associated Faculty

Charles Chubb , Professor, UCI
Zygmunt (Zyg) Pizlo , Falmagne Chair Professor, UCI
Charles E. (Ted) Wright , Associate Professor, UCI

Recent PhDs

Erik Blaser, Professor, Psychology Department, University of Massachusetts, Boston
Elizabeth Ho , Platform architect, Apple Corp.
Joetta Gobell , Director of Research, Frank N. Magid Associates, Inc, NY NY
Chia-huei Tseng , Associate Professor, Research Institute of Electrical Communication, Tohoku Univ., Sendai, Japan
Greg Appelbaum , Associate Professor in Psychiatry and Behavioral Sciences, Duke University, Durham, NC
Stefanie Wong Drew, Associate Professor, Cal State Northridge
Ling Lin , Research scientist, AcuFocus Inc
Dantian Liu , Chi Acupuncture
Son-Hee Lyu
I. Scofield, Lecturer, Cal State Fullerton (Dec)

Recent Postdocs

Hyungjun Kim Research Associate, McGill University, Montreal, CA
Nong Sang Associate Professor, Huazhong University of Science and Technology, Wuhan, Hubei 430074 China
Tae-Seong Kim Associate Professor Department of Biomedical Engineering Kyung Hee University Republic of Korea
Jian Ding , Associate Researcher, University of California, Berkeley
Peng Sun, Associate Project Scientist, University of California, Irvine


Reviews, Recent Publications, Abstracts


Psychology 111A+112A Experimental Psychology. (4)

Psychology 131A = BioSci 182: Vision. (4)

Psychology 202c. Proseminar in Sensation and Perception. (Vision Section)

Psychology 210A. Perception. (4).

Psychology 211, Attention and Perception. Winter 2020 (4).

Psychology 217. Vision (4).

Psychology 229, Attention Seminar. Special Topics in Human Cognition (4).

Psychology 259. Special Topics in Human Performance. Winter 2014: Visual Attention (4).

Psychology 269. Special Topics (4).

Psychology 289, Special Topics in Perception and Information Processing. Fall 2011 (Chubb & Sperling): Psychophysics Theories (4).

SocSci H1G. Critical Issues in the Social Sciences. (Subunit on Perception, Attention, Short-Term Memory)

Mathematical Psychology Workshop, July, 1997.

Matlab problem corrections


Annual Interdisciplinary Conference (AIC) 1976 - 2016

Frontiers in Human Information Processing -- Vision, Attention, Memory, and Applications: A Tribute to George Sperling. July 28-29, 2007.

Vision Sciences Society, Posters at the May 5-10, 2006, meeting.

OSA-2001 Optical Society of America: Color and Vision Conference at UCI. (Click here for optional plain text)

Society of Experimental Psychologists (SEP, 1998) *** GROUP PHOTO ***

Files for Viewing and/or Download


UC Campus_Comparisons 2014-15

Photos, W.K. Estes

Sperling+Sun+Chu_VSS_2020_Mulitple_salience maps (mp4 movie, 12 min 154 MB)

Local Attractions

Mount Baldy, March 18, 2003

George skiing at Annual Interdisciplinary Conference AIC-41, Breckenridge, CO, Crystal Trail under Falcon Chair. 2016.02.06

Other Relevant Web Pages

Department of Cognitive Sciences
Department of Neurobiology and Behavior
Institute for Mathematical Behavioral Sciences
UC Irvine School of Social Sciences
Vision Sciences Society
Optical Society of America

Note: This document uses Netscape extensions to HTML. The image at the top is similar to Fig. 4b in Chubb, C. & Sperling, G. (1988). Drift-balanced random stimuli: A general basis for studying non-Fourier motion perception. Journal of the Optical Society of America A: Optics and Image Science, 1988, 5, 1986-2006. When the ordinate is taken as time, and the abscissa as the x-value of a one-dimensional stimulus, the figure represents time-slices of a drift-balanced motion stimulus. Alternatively, taking the coordinates as x,y, the figure represents a slant-balanced texture stimulus.

© George Sperling. Permission is hereby granted for personal use. Any dissemination, distribution reproduction, or other use only with written permission from George Sperling. Send comments and suggestions to <>
Last updated: 2019.12.23