The Role of Early Perceptual Learning in Reading

2000 ◽  
Author(s):  
Tatjana A. Nazir ◽  
Avital Deutsch ◽  
Jonathan Grainger ◽  
Ram Frost
Keyword(s):  
Perceptual Learning

scholarly journals The role of attentional abilities in lexically guided perceptual learning by older listeners

2014 ◽  
Vol 77 (2) ◽  
pp. 493-507 ◽  
Author(s):  
Odette Scharenborg ◽  
Andrea Weber ◽  
Esther Janse
Keyword(s):  
Perceptual Learning

Role of Tactual-Kinesthetic Feedback in Transfer of Perceptual Learning for Rats with Pigmented Irises

1970 ◽  
Vol 30 (3) ◽  
pp. 916-918 ◽  
Author(s):  
Thomas L. Bennett ◽  
Edward J. Rickert ◽  
Louis E. McAllister
Keyword(s):  
Perceptual Learning ◽  
Early Experience ◽  
Kinesthetic Feedback

Hooded rats were pre-exposed to circles and triangles in an otherwise visually sparse environment where opportunity to manipulate the forms was varied for the early experience groups. Although early experience with these stimuli enhanced their later discriminability over that shown by control animals who received no early experience, opportunity to manipulate the forms produced no additional gain in perceptual learning relative to Ss not allowed to manipulate the pre-exposed shapes. The findings restrict the generality of the tactual-kinesthetic feedback hypothesis.

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.

A Hippocampal Signature of Perceptual Learning in Object Recognition

2015 ◽  
Vol 27 (4) ◽  
pp. 787-797 ◽  
Author(s):  
Matthias Guggenmos ◽  
Marcus Rothkirch ◽  
Klaus Obermayer ◽  
John-Dylan Haynes ◽  
Philipp Sterzer
Keyword(s):  
Object Recognition ◽  
Perceptual Learning ◽  
Transfer Of Learning ◽  
Behavioral Training ◽  
Enhancing Effect ◽  
Monetary Rewards ◽  
Before And After ◽  
Perceptual Performance ◽  
Recognition Of Objects

Perceptual learning is the improvement in perceptual performance through training or exposure. Here, we used fMRI before and after extensive behavioral training to investigate the effects of perceptual learning on the recognition of objects under challenging viewing conditions. Objects belonged either to trained or untrained categories. Trained categories were further subdivided into trained and untrained exemplars and were coupled with high or low monetary rewards during training. After a 3-day training, object recognition was markedly improved. Although there was a considerable transfer of learning to untrained exemplars within categories, an enhancing effect of reward reinforcement was specific to trained exemplars. fMRI showed that hippocampus responses to both trained and untrained exemplars of trained categories were enhanced by perceptual learning and correlated with the effect of reward reinforcement. Our results suggest a key role of hippocampus in object recognition after perceptual learning.

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