(antique Psyscope Button Box)
UCLA Phonetics Lab
The lab has three ways to run perception experiments
with adult subjects.
First, Matlab with the Psychtoolbox
and optionally with a Scicon button box can be used in the Phonetics Lab's
sound booth, in the Psycholinguistics Lab's soundbooth, or (on one
of the lab's laptops) anywhere else. Matlab must be installed on a computer to run (as well as to program) an experiment. Important update in 2013: There is a new version of PsychToolbox which is not compatible with most of our existing scripts. Gradually, all the computers in the lab are being updated with the new version of PsychToolbox. Existing scripts need to be updated before they can be used with the new version.
Lab descriptions of Matlab scripts for perception experiments. Note that Henry will provide new scripts, or update old ones, as needed for anyone in the Department.
Second, the Eprime Player is
available throughout the lab for running experiments. To program an experiment in Eprime, you
need to get the key for the program from the Language Lab manager, and
use it to access a copy of Eprime on one of the lab's computers.
a laptop is used to run an experiment, we recommend
also using an external D/A device (in the hallway cabinet, or in the
laptop case) for presenting audio stimuli; and outside a soundbooth,
we recommend using Sennheiser or other sound-attenuating headphones. (See Henry for those.)
Third, the lab has an SR Research Eyelink 1000 eyetracker, housed in the Psycholinguistics Lab and available to the entire department. Henry will provide new scripts, or update old ones, as needed for anyone in the Department.
Online sign-ups for testing facilities: click to go to sign-up calendars:
Phonetics Lab booth in 2101N
Psycho Lab booth in 2226
Testing room in Psycho Lab, 2210AA
Eyetracking room in 2226E
database for computing lexical statistics (before selecting stimulus words for experiment) - on the T: drive in the lab
Help with statistical analyses of perception data is on
our lab statistics
Infant perception experiments are carried out in the Language Lab.
Back to facilities
Back to phonetics lab
last updated by Pat Keating Summer 2013