scholarly journals Pre- versus Post-Stimulus Comparison of Correlated Spiking Variability across V1 Laminae

2017 ◽  
Vol 17 (10) ◽  
pp. 734
Author(s):  
Jacob Westerberg ◽  
Michele Cox ◽  
Kacie Dougherty ◽  
Alexander Maier
Keyword(s):  
Stimulus Comparison

The role of stimulus comparison in animal perceptual learning: Effects of a distractor placement

2018 ◽  
Vol 71 (12) ◽  
pp. 2488-2496 ◽  
Author(s):  
Sergio A Recio ◽  
Adela F Iliescu ◽  
Isabel de Brugada
Keyword(s):  
Perceptual Learning ◽  
Learning Process ◽  
Time Lapse ◽  
Animal Research ◽  
Learning Effects ◽  
Stimulus Comparison ◽  
Human Research ◽  
Short Time ◽  
Effect Experiment

Research on perceptual learning shows that the way stimuli are presented leads to different outcomes. The intermixed/blocked (I/B) effect is one of these outcomes, and different mechanisms have been proposed to explain it. In human research, it seems that comparison between stimuli is important, and the placement of a distractor between the pre-exposed stimuli interferes with the effect. Results from animal research are usually interpreted in different terms because the type of procedure normally used in animal perceptual learning does not favour comparison. In our experiments, we explore the possibility that a distractor placed between the to-be-discriminated stimuli may interfere with the perceptual learning process in rats. In Experiment 1, two flavoured solutions are presented in an I/B fashion, with a short time lapse between them to favour comparison, showing the typical I/B effect. In Experiment 2, we introduced a distractor in between the solutions, abolishing this effect. Experiment 3 further replicates this by comparing two intermixed groups with or without distractor. The results replicate the findings from human research, suggesting that comparison also plays an important role in animal perceptual learning.

The effect of stimulus comparison on discrimination learning and transposition.

1960 ◽  
Vol 53 (5) ◽  
pp. 415-421 ◽  
Author(s):  
Donald A. Riley ◽  
Kenneth Ring ◽  
James Thomas
Keyword(s):  
Discrimination Learning ◽  
Stimulus Comparison

Second-Order Vestibular Adaptation and Cupular Dynamics

1980 ◽  
Vol 89 (3) ◽  
pp. 262-267 ◽  
Author(s):  
Richard W. Babin ◽  
Jai H. Ryu ◽  
Brian F. McCabe
Keyword(s):  
Initial Response ◽  
Vestibular Nuclei ◽  
Second Order ◽  
Stimulus Comparison ◽  
Velocity Change ◽  
Vestibular Adaptation ◽  
Before And After ◽  
Adaptation Phenomenon

The magnitude of initial response and slope of continued response of 45 neurons in the vestibular nuclei of cats to constant and interrupted accelerations were investigated. Eighty-eight percent exhibited adaptation, the magnitude of which was proportional to the stimulus. Comparison of slope and intercept of the response to continuous acceleration before and after a superimposed inhibitory velocity change suggests that the adaptation phenomenon is unrelated to cupular position.

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