highly significantp < 0.001
A clear, highly significant delay-dependent decrement in the percentage preference for the large reinforcer was observed [Fig. 3 ; delay: F 4,60 =270.22, p < 0.001].
A clear, highly significant delay-dependent decrement in the percentage preference for the large reinforcer was observed [Fig. 3 ; delay: F 4,60 =270.22, p < 0.001].