منابع مشابه
Resurgence of temporal patterns of responding.
The resurgence of temporal patterns of key pecking by pigeons was investigated in two experiments. In Experiment 1, positively accelerated and linear patterns of responding were established on one key under a discrete-trial multiple fixed-interval variable-interval schedule. Subsequently, only responses on a second key produced reinforcers according to a variable-interval schedule. When reinfor...
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Background: Microdermabrasion has recently become a popular procedure among physicians and patients, whereas few studies have assessed the efficacy of different microdermabrasion protocols nowadays applied.The objective of this study was to assess the effects of microdermabrasion, as well as to compare the effects of weekly and biweekly intervals of microdermabrasion sessions on skin biophysica...
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This paper proposes a generic architecture and protocol for adaptive distribution of multimedia content within collaborative conferencing sessions, supplying applications like presentation sharing, co-browsing, or application sharing with extensive content. Applications building upon it are able to use efficient decoupled content delivery with adaptation in a tightlycoupled environment while in...
متن کاملMethylphenidate and nicotine focus responding to an informative discrete CS over successive sessions of appetitive conditioning.
Methylphenidate (MP) and nicotine would be expected to improve associative learning, though previous evidence suggests that they should reduce the selectivity with which associations are formed. Here we tested their effects on learning the association between a conditioned stimulus (CS) and food (unconditioned stimulus, UCS) in male Wistar rats. The UCS was delivered immediately (0 s) following...
متن کاملTowards a mathematical model of within-session operant responding.
Operant response rate changes within the course of a typical free-operant experimental session. These changes are orderly, and reliably demonstrated with subjects from different species, responding under different experimental conditions. Killeen (1995) postulated that the response rate changes are a function of the interplay between arousal and satiation and offered a mathematical model for th...
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ژورنال
عنوان ژورنال: Journal of the Experimental Analysis of Behavior
سال: 1992
ISSN: 0022-5002
DOI: 10.1901/jeab.1992.58-19