scholarly journals Effects of a backward conditioning procedure following acquisition on extinction of conditioned suppression

1973 ◽  
Vol 1 (2) ◽  
pp. 137-139 ◽  
Author(s):  
Charles K. Burdick ◽  
James P. James

1974 ◽  
Vol 26 (3) ◽  
pp. 405-416 ◽  
Author(s):  
Anthony G. Yeo

The effect of interstimulus interval (ISI) variation on the acquisition of a classically conditioned emotional response was investigated using a one-trial conditioning procedure. The optimum ISI was found to be 10 s with a bidirectional gradient for conditioned suppression at ISI above and below 10 s. Control groups demonstrated that conditioning was not a function of either pseudoconditioning, sensitization or stimulus novelty.



1976 ◽  
Vol 28 (3) ◽  
pp. 449-458 ◽  
Author(s):  
Anthony Yeo

The effects of intertrial interval (ITI) and foreperiod duration on the acquisition of a conditioned emotional response were investigated using a four-trial conditioning procedure. The optimum ITI was found to be 60 s with a bidirectional gradient for conditioned suppression above and below 60 s. Conditioned supression was found to be directly related to foreperiod duration.



2019 ◽  
Vol 34 (1) ◽  
pp. 145-147
Author(s):  
Helen Joan Cassaday ◽  
Karen Elizabeth Thur

Activation of 5-hydroxytyptamine6 (5-HT6) receptors stimulates attentional switching and 5-HT6 receptor antagonists are putative drugs for psychosis. Latent inhibition (LI) provides a pre-clinical model of attentional switching and ‘antipsychotic-like’ action and is known to be modulated by 5-hydroxytyptamine. In the present study, LI was shown in a fear conditioning procedure that measured suppression of drinking after conditioning with footshock. In two experiments (each n = 48) it was shown that pre-exposure to both light- and noise-conditioned stimuli reduced conditioned suppression relative to the corresponding non-pre-exposed control. However, counter to prediction, LI was intact after treatment with the 5-HT6 agonist EMD386088 (5 mg/kg).



1986 ◽  
Vol 99 (3) ◽  
pp. 367 ◽  
Author(s):  
Douglas A. Williams ◽  
Dennis G. Dyck ◽  
Robert W. Tait








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