J. E. Purdy

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Two groups of cuttlefish (Sepia officinalis) were used to demonstrate classical conditioning in this species and to determine whether the resulting approach response would be that of sign tracking or goal tracking. For cuttlefish in the paired condition, a flashing light was presented at one end of a long tank followed by food dropped into the center of the(More)
The general psychology course provides a unique opportunity to present the science of psychology to a wide audience. Informing the general public about the importance of animal research in psychology is especially important given contemporary concerns about animal rights and animal welfare. A study of 8 leading introductory psychology textbooks indicated(More)
The prawn-in-a-tube procedure (J. B. Messenger, 1973a) has been used almost exclusively to study associative learning in cuttlefish. In two experiments, the authors sought to determine whether the decline in attack responses observed in this procedure was best accounted for by habituation or associative learning. Results of Experiment 1 revealed an(More)
The general psychology course provides a unique opportunity to present the science of psychology to a wide audience. Informing the general public about the importance of animal research in psychology is especially important given contemporary concerns about animal rights and animal welfare. A study of 8 leading introductory psychology textbooks indicated(More)
It is proposed that the dominance of continuity learning theory as set against noncontinuity learning theory during the middle third of the 20th century rested importantly on its derivation from Darwin's theory of evolution. The kinship is shown in several ways. First, Thorndike and Hull echoed the principle of natural selection in their belief that(More)
Sperling in 1960 reported information in sensory storage remained for about one sec. In 1974 Phillips reported that information in sensory storage passed on to short-term visual memory after 100 msec. To distinguish between these alternatives, 55 subjects received 36 trials in which two matrices of letters, familiar shapes, or non-familiar shapes were(More)
Although nouns of high imagery are generally recalled better than nouns of low imagery, both Palermo and Yuille have shown that retention for the former decreases with time. The present study tested the hypothesis that this decreased effectiveness occurs because images stored in long-term memory are accessible only through their verbal labels. 64 subjects(More)
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