scholarly journals The effects of varying the interreinforcement interval on appetitive contextual conditioning

1991 ◽  
Vol 19 (2) ◽  
pp. 125-138 ◽  
Author(s):  
Alba E. Mustaca ◽  
Fabian Gabelli ◽  
Mauricio R. Papini ◽  
Peter Balsam
Keyword(s):  
Interreinforcement Interval ◽  
Contextual Conditioning

scholarly journals Factors governing one-trial contextual conditioning

1990 ◽  
Vol 18 (3) ◽  
pp. 264-270 ◽  
Author(s):  
Michael S. Fanselow
Keyword(s):  
Contextual Conditioning

Behaviour of Rats During Selfinitiated Pauses in Feeding and Drinking, and during Periodic Response-Independent Delivery of Food and Water

1980 ◽  
Vol 32 (3) ◽  
pp. 459-472 ◽  
Author(s):  
T. J. Roper
Keyword(s):  
Good Predictor ◽  
Temporal Pattern ◽  
Baseline Level ◽  
Fixed Time ◽  
Interreinforcement Interval ◽  
Free Access ◽  
Periodic Response ◽  
Access To Food ◽  
Schedule Induction

In Experiment I rats deprived of either food or water were given free access to food or water respectively, and their behaviour was observed during self-imposed pauses in feeding or drinking. In Experiment II food or water were delivered according to fixed-time 30-s and fixed-time 60-s schedules, and the behaviour of the rats was observed during the interreinforcement intervals imposed by these schedules. In both experiments the temporal pattern of those activities that occurred during pauses in eating differed from the pattern of activities occurring during pauses in drinking; and with both food and water the temporal pattern of activities during self-imposed pauses in consummatory behaviour in Experiment I proved a good predictor of the pattern of activities during schedule-imposed interreinforcement intervals in Experiment II. This suggests that intermittent schedules permit the occurrence of those activities that are normally closely associated with the consummatory behaviour in question. In Experiment II certain activities that occurred towards the end of the interreinforcement interval were found to be enhanced relative to baseline level, but there was no enhancement of activities occurring near the beginning of the interval. This is contrary to Staddon's (1977) account of schedule-induced behaviour, and suggests that schedule-induction is not as common as has sometimes been supposed.

Contextual conditioning

1990 ◽  
Vol 25 (4) ◽  
pp. 174-179
Author(s):  
Harald Lachnit ◽  
Herbert D. Kimmel
Keyword(s):  
Contextual Conditioning

Influence of Dorsolateral Periaqueductal Grey (DLPAG) Lesions on Contextual Conditioning with Massed and Distributed Shock

2002 ◽  
Vol 55 (1b) ◽  
pp. 27-42
Author(s):  
Jake J. Klassen ◽  
Douglas A. Williams ◽  
Bruce Bolster ◽  
Robert W. Tait
Keyword(s):  
Rattus Norvegicus ◽  
Contextual Cues ◽  
Periaqueductal Grey ◽  
Single Shock ◽  
Conditioned Defensive ◽  
Contextual Conditioning ◽  
Electrolytic Lesions

Three experiments investigated the conditions under which electrolytic lesions of the dorsolateral periaqueductal grey (dlPAG) facilitate conditioned defensive freezing in the rat (Rattus norvegicus). Experiment 1 found that dlPAG lesions placed before context-shock pairings facilitated conditioned defensive freezing with massed but not distributed shock. No such effect was found in Experiment 2, when the lesions were placed after context-shock pairings. Experiment 3 found that dlPAG lesions facilitated subsequent conditioning with massed but not a single shock. In addition, no differences in sensitivity to thermal or shock pain were evident in lesioned and unlesioned rats. Taken together, these results are consistent with the suggestion that dlPAG activation interferes with the processing of contextual cues during association formation.

Sign in / Sign up

Export Citation Format

Share Document