Infrequent reward facilitates observing responses in rats
作者： James S. McMichael , John T. Lanzetta , James M. Driscoll
DOI: 10.3758/BF03330648
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摘要: Rats had the option of pressing either two stimulus levers to gain access a third lever which produced food reinforcement on 20%, 50%, or 80% trials for different groups. One led stimuli correlated with reward and no reward; other always same stimulus. Delay facilitated choice stimuli, while increasing deprivation time equivocal effects. Ss rewarded 20% 50% increased their frequency group showed decrease respect baseline responding.
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