WordNet - An on-line lexical reference system whose design is inspired by current psycholinguistic theories of human lexical memory

Object DataBank - A set of realistic three-dimensional objects for use in computational and psychological studies, developed in Michael Tarr's lab.

COGENT - A graphical environment for cognitive modeling. Free for the moment, and available for PC and Unix. Developed by Rick Cooper, John Fox and others.

MLE_MIX - A DOS-based Pascal program that implements the multinomial maximum-likelihood mixture analysis, by Yantis, Meyer & Smith.

MLPest, PsychoFit, etc. - Useful (and free) software (for Macintoshes and PCs) for running and analyzing experiments, by Lewis O. Harvey, Jr.

Neurobehavioral Systems, Inc. - Software for conducting neuroscience experiments using standard Windows PCs. Stimulus delivery software can be used for cognitive psychology, fMRI, erp and single unit research.

Life Science Associates - Publisher of psychology software offering programs for cognitive rehabilitation.

G*Power - A general power analysis program, free for Mac and PC. Written by E. Erdfelder, F. Faul and A. Buchner, at the University of Trier.

PXL (Psychological Experiments Library) - Useful source code for software to run experiments in psychophysics and experimental psychology. Free for PC, from Hans Irtel.

CTI Psychology - An extensive guide to psychological software

Web-Based Courseware on causal reasoning - Proposal at Carnegie Mellon's Human and Computer Interaction Department.

RSVP - Experimental control software for MacOS, by Michael Tarr and Pepper Williams (free).

SignStream - Software to facilitate linguistic annotation and analysis of visual language data (e.g., for signed languages and the gestural component of spoken languages).