[ACT-R-users] EMMA question (bug?)

["Marc Halbrügge"]

Hi,

while modeling some visual search behavior, I ran across the following problem:

Salvucci (2001) states that "EMMA can produce skipped gazes by canceling
saccades when encoding occurs quickly (i.e., before eye-movement preparation is complete)"

but the ACT-R module skips gazes much too often when the encoding time is short. I tracked that down to line 391 in method initiate-eye-move:

(when (<= recog-time (total-time sacc-mvmt))
  (schedule-event-relative (max 0 recog-time)  'ENCODING-COMPLETE   ;;mjs


I my opinion, this should be (changes in bold)

(when (<= recog-time (FPREP-TIME sacc-mvmt))
  (schedule-event-relative (max 0 recog-time)  'ENCODING-COMPLETE   ;;mjs


What do you think?

Greetings
Marc
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