Viewing Instructions

#1 I don't see anything!

Check to see if you are operating on a Java supporting browser.
Currently, platforms running Java-supported Netscape 2.0 are: If you don't have this equipment or one of these operating systems, then you will need to find one of the above to view the Java applet.*

#2 The applet starts, but it looks strange.

There may be two things causing the applet not to appear normal. First, sometimes it does not load properly. To correct this, click reload while holding the shift key down, this re-downloads the file and applet. Second, the timing may be disturbed by the presence of of too many processes on the user's machine. The timing is very sensitive to other applications using the computer's processor.

#3 I see buttons, squares, and scrollbars. Now what?

It's working. Try one of the six preset exercises at the left of the cotrols, or try adjusting the manual controls to get a feel for what the applet does. From left to right, the controls are as follows:
A column of six preset exercises. (see below)
A scrollbar to adjust speed.
A scrollbar to adjust image size.
A scrollbar to adjust vertical disparity.
A scrollbar to adjust horizontal disparity.
A selection box for the left image color.
A START button.
A STOP button.
A selection box for the right image color.
A selection box for the left image shape.
A checkbox for a trailmaking smear.
A selection box for the right image shape.
Try one of the six preset exercises. They are as follows:
A green square to a green square.
A green square alone.
A green square to a red square.
A blue square to a yellow square.
A green square up to a green square. (vertically disparate)
A green triangle to a circle with no positional disparity.

#4 I saw the effect and have some comments to make about it.

Click the response button and submit your observations or explanation of the phenomenon. Perhaps include a comparison of the exercises.


*If you operate on a non-Sun, Unix environment and you can telnet to a Sun machine, here is a somewhat technical way of getting a Java- supported Netscape 2.0 running on your terminal. Follow these steps:
  1. Find out what your current host is. At a unix prompt, type:
    hostname
    (Say the command returns hopfield.phil.rpi.edu)
  2. Pick a Sun host to run the enhanced Netscape 2.0 browser.
    rebecca.its.rpi.edu or goya.its.rpi.edu are a few SunŐs at RPI.
  3. At a Unix prompt, set the xhost to your selected host:
    xhost rebecca.its.rpi.edu
  4. Telnet to that host
    telnet rebecca.its.rpi.edu
  5. Login with your userid and password.
  6. Export the display back to your own host.
    export DISPLAY=hopfield.phil.rpi.edu:0.0
  7. Finally, run netscape by typing the following command in your Unix window:
    netscape&