Prefrontal cortical and nucleus accumbens contributions to discriminative conditioned suppression of reward-seeking.

Although the total number of lever-presses made during the session was not affected by PL inactivation ( t (23) = 1.28, P > 0.20), locomotor activity tended to be reduced, although this effect only approached significance ( t (23) = −1.76, P > 0.09; Table 1 ).

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