1998
DOI: 10.3758/bf03199223
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Spatiotemporal characteristics of serial CSs and their relation to search modes and response form

Abstract: In four experiments, we examined how the spatiotemporal proximity to food of the two elements of a serial conditioned stimulus (CS) influenced the pattern of C8--directed versus food-site-directed behavior in rats. Experiment I showed that only temporal proximity affected responding when the serial CS consisted of two successive 4-sec presentations of either a spatially near or a spatially far lever (NN or FF). However, Experiment 2 showed that behavior depended markedly on whether rats received a near followe… Show more

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Cited by 22 publications
(25 citation statements)
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“…Silva, Timberlake, & Gont, 1998), the presentation of moving probe stimuli (K. M. Silva & Timberlake, 1997;Timberlake et al, 1982;Timberlake & Washburne, 1989), or acoustic startle (Davis, 1989). For example, it appears that general and focal search overlap in expression during specific periods of the IFI.…”
Section: Behavior Systems Accountmentioning
confidence: 99%
“…Silva, Timberlake, & Gont, 1998), the presentation of moving probe stimuli (K. M. Silva & Timberlake, 1997;Timberlake et al, 1982;Timberlake & Washburne, 1989), or acoustic startle (Davis, 1989). For example, it appears that general and focal search overlap in expression during specific periods of the IFI.…”
Section: Behavior Systems Accountmentioning
confidence: 99%
“…Moving the location of the CS from the Far to the Near Light CS position slightly increased the average number of nose-pokes on nicotine session; that level was not significantly different from saline sessions. These findings indicate the importance of spatial location on nicotine modulation of a sign-tracking CR, and extend this conclusion to a very different task and set of procedures than that of Silva et al (1998). In the Silva et al studies, they found that a `far' CS did not control sign-tracking (lever contact) when the `far' CS was the more temporally contiguous stimulus.…”
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confidence: 54%
“…Both spatial and temporal contiguity are considered important for conditioning and degrading one can adversely affect learning (Pavlov, 1927). Indeed, Silva et al (1998) found that a sign-tracking CR in rats varied with spatial and temporal proximity of the lever CS (inserted into chamber for 4 sec) to delivery of food pellets. Whether a similar effect will be seen with nicotine as the drug feature modulating responding to the CS is unclear especially considering that nicotine can enhance learning, memory, and attention (Besheer & Bevins, 2004).…”
mentioning
confidence: 99%
“…Thus, in group 25%+, for which a tangible but modest CS2 : food correlation was presented, a hearty focal search CR was acquired, whereas the much stronger correlation present for group 75%+ led to a consummatory CR. Although the temporal and spatial distances between CS2 and food were the same for both groups, the conceptual unity of various measures of proximity [38] invites consideration of a network theoretic measure of proximity, number of intervening links in the graph, as a potentially appropriate way of conceiving distance for these purposes. It is feasible that the groups acquired different network structures: group 25%+ subjects may have acquired the conditionality model (as in figure 1 b ), whereas group 75%+ acquired the direct relevance model (figure 1 a ), in which case, the network distance would be greater in group 25%+.…”
Section: Discussionmentioning
confidence: 99%