Task design and trial overview

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Carli M, Evenden JL, Robbins TW (1985). Depletion of unilateral striatal dopamine impairs initiation of contralateral actions and not sensory attention. Nature 313: 679682.


This task implements procedure (1) of Carli et al. (1985).




This task runs in a standard "nine-hole box" or "five-choice" operant chamber, shown below. However, it only uses three central holes (the centre hole and a definable pair on either side) and the food magazine.


FiveChoice apparatus


Task outline


SameOpposite overview (Illustrator 11)


See the trial details for a full description.