Program Name Powerlab PsyScope PsyScript AppleScript MatLab E-Prime DirectRT Superlab
general comments only available for classic on the mac, no intention of porting it to OS X. workgroup is at work on an OS X beta release, intend to have it out by spring 2004, I bet it shows up in 2005. byzantine and obscure. technically sophistoicated, powerful, only for those with programming experience. Very good with visual stimuli. All mac development has been suspended indefinitely. The standard for others to meet, apparently.    
website http://www.adinstruments.com/ http://psy.ck.sissa.it/ - http://psyscope.psy.cmu.edu/ http://www.maccs.mq.edu.au/~tim/psyscript/ http://www.mathworks.com/products/ http://www.pstnet.com/e-prime/default.htm http://www.empirisoft.com/directrt/ www.superlab.com
Operating System OS X for Macs in classic mode Macs - OS7 to OS9 PowerMac 8.5 or better Macs and PCs Windows 95/98/ME/2000/XP  NOT win95 or even win98 soon I think.. Windows 2000/XP Windows and Macs
Cost   free? free Matlab is expensive; Psychtoolbox is free $695 each, $3000 for 5, or a 10 person minimum software license for departments only $475 Basic the Workstations are 175$ each. (1st included) single license is $595, and it is $1800 for 5 licenses (educational prices); also information on http://www.cedrus.com/ordering/usa.htm
Learnability   deceptively easy easy training classes available relatively easy to learn, built-in tutorial and experiment wizard Quick like eprime it's not too difficult - there is a manual
Ease of use/coding     "more convoluted and weird than Matlab" have to know how to code, no GUIs very easy to use once you know it except for visual basic scripting for which you need to know how to program. easy. Not as expandable as Eprime however. you'll be able to create a superlab script file through Excel, which makes things easier
trigger for scanner?         yes    
technical support   none, but mailing list yes; also mailing lists yes yes (about 24-48 hour turnaround time, not always helpful though); also mailing lists. yes very quick and good. You talk to the author. yes, they are quite helpful and nice
generally used/ updated?   used often has not been worked on for over a year yes used by many PC researchers http://www.empirisoft.com/customers.htm used by many PC researchers; updates expected in the summer
timing?   not good good unknown very good very good good
pros   use of GUI's (not complete); use text, pictures, sounds, movies; saves data files; use of Button Box full programming language core mathematics and advanced graphical tools for data analysis, visualization, and algorithm and application development; can generate simple stimuli such as lines, color patches, etc. Favored by psychophysics community GUI; text, wav, supports e-basic coding, .bmp figures, list-use; supporting data-analysis packages; data exportable into excel GUI. Uses excel lists instead of an internal spreadsheet. Great for presenting audio and visual stimuli. A list of new features can be found at: www.superlab.com/v3/new_features.htm
cons   still under development for OS X; can't run some complex scripts; buggy; poor randomization rountines; cannot generate stimuli; is only appropriate for simple experiments   no GUIs Complex stimuli ordering hard to accomplish without extra code. Not for Macs yet, doesn’t show videos, GUI is a little convoluted. new versions will not be released til the summer of 2004
Where developed   Carnegie Mellon by Jonathan Cohen, Matthew Flatt, Brian MacWhinney and Jefferson Provost Mike Tarr and Lawrence D'Oliviero   PITT - by Walt Scheider empiresoft -NYC