Question

Suppose that the necessary and sufficient constraints are respected and that a stimulus predicting reward (CS+) is followed by a reward (US+) 20 consecutive times (from t1 to t20). At t1, what will a Dopamine neurons (DA) activation pattern look like?

             a) no firing for CS+ and no firing for US+

             b) no firing for CS+ and firing for US+

             c) depression for CS+ and firing for US+

             d) depression for CS+ and depression for US+

Please explain

Answer 1

It has been informed that there is a lap of 20 seconds between the initial onset of the stimulus. It is vital to understand that the organism tries to memorize the case that there is an absolute reward available after an initial phase, however, it does not react to the few initial reward cycles such as condolitions. Therefore, the dopamine levels increase after some cycles, while the initial phase sees no secretion of dopamine.

Therefore, the correct answer is option (b).