Chapter 2. Prehension

68
(sticks up)
THE PHASES OF PREHENSION
Hammer
(down)
Test (UP.. Test
Hammer Hammer
A A
(down) (Y?)
7 )[
Figure 4.2 The TOTE (Test-Operate-Test-Exit) mechanism operates
to determine successful completion of hammering the nail.
TOTES deal with the correction of errors and ensure successful
completion of one level of analysis of the task (from Miller,
Galanter and Pribram, 1960; reprinted by permission).
plan, and if so, how is it incorporated? Arbib would argue that errors
are just passed along, and a perceptual schema would note a mismatch
between the current scene and anticipated scene and would therefore
reprogram the motor task. One way to achieve this is to represent the