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211.
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A combined operandum-feeder is described that eliminates the necessity of passing an electrical sensing current through S while detecting and reinforcing tongue-licking responses. A glass nozzle for dispensing liquid reinforcers is situated just above a small separation in a loop of photo-conducting Sterite tubing; licks at a tiny area below the nozzle break a light beam and are detected via a photo-resistor and associated circuitry. Data are presented from a study in which rats worked at the operandum on a mult FR 40 ext schedule; performance and records are comparable to those obtained via conventional electronic sensing. Applications of the photo-lickerandum and an associated variable-quantum reinforcing system are suggested. 相似文献
213.
Donald L. King 《Psychological research》1988,50(3):173-180
Summary Blocks of pairs of dissimilar (anchor-like) circles were unexpectedly followed by single pairs of similar circles and vice versa. The dissimilar circles were 3 and 10 mm in diameter, and the similar circles were 3 and 5 mm, 5 and 7 mm, and 7 and 10 mm in diameter. In a second experiment, the dissimilar and similar circles did not overlap in size (e.g., they were 1.5 and 5 mm and 7 and 10 mm, respectively). The same responses to the unexpected same pairs of similar circles were faster than the same responses to the identical pairs in the blocks. In contrast, the different responses to the unexpected different pairs of similar circles were slower than the different responses to the identical pairs in the blocks. Similar stimuli accelerate same responses and slow down different responses. So the time results (and the error results as well) suggest that the context of the block dissimilar circles increased the perceived similarity of the unexpected similar circles. These anchor-range results are not explained by Thurstonian theories, which are based on the absolute properties of stimuli. Instead, they imply that the relation between the similar circles in the context of the relation between the dissimilar circles affected performance. 相似文献
214.
Personal striving differentiation and affective reactivity 总被引:3,自引:0,他引:3
Examined the relation between affective reactivity (intensity and variability of mood) and cognitive differentiation through the personal striving (Emmons, 1986) framework in order to test the hypothesis that affective reactivity underlies differentiation. 88 Ss in 2 samples listed 15 of their personal strivings and rated them with respect to 3 measures of striving differentiation (interdependence, dissimilarity, and plans for accomplishing each). Experience-sampling and daily mood ratings were used to assess affect intensity and affect variability over a 3-week period. Emotionally reactive Ss possessed a more differentiated striving system. However, they generated fewer plans for accomplishing each striving than did less reactive Ss. Results are interpreted in terms of Larsen and Diener's (1987) arousal regulation theory of affect intensity and Linville's (1982, 1985) self-complexity/affect-extremity model. 相似文献
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Richard M Sorrentino Gillian King Gloria Leo 《Journal of experimental social psychology》1980,16(3):293-301
This research note raises some concerns about possible alternative explanations to studies using perceptual change as indicative of minority vs majority influence. Having failed to replicate the original study (S. Moscovici & B. Personnaz, Journal of Experimental Social Psychology 1980, 16, 270–282), using the same and an alternate measuring procedure, inspection of additional data introduces the role of suspiciousness in explaining this and previous findings. An informal study adds further credence to this explanation. 相似文献
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Ss read paragraphs varying in syntactic complexity, contiguity of information that was conceptually related, and amount of information relating to quantitative variables. Paragraphs were presented too briefly to allow full reading in many cases. In questions requiring use of the quantitative information, proportion of correct responses was influenced by syntax, contiguity, and number of variables from the paragraph. However, neither syntax nor contiguity influenced latency of correct answers, while number of variables, a factor affecting complexity of the process of answering, did influence correct response latency. The findings confirm and extend earlier results by Kintsch and Monk (1972) and give further support to the proposition that assimilation of information in linguistic input involves storing the semantic content of the message. 相似文献
220.
A high-voltage radio-frequency stimulator was used as a source of motivational footshock in studies of conditional suppression. The circuit of the stimulator is presented schematically, then discussed in terms of affect induced by, gross behavioral response to, and electrical characteristics of, the stimulus. Near daily use of the stimulator across 6 months of formal assessment revealed that nonscrambled presentations of footshock via a grid of aluminum bars invariably resulted in stimulation of rat Ss and generated highly efficient conditional suppression of operant responding. While the stimulator was primarily designed to permit unconfounded presentation of gridshock in a 2,450-MHz microwave field, its simplicity and reliability suggest application in other situations requiring motivational shock. 相似文献