scholarly journals The role of rule-based learning in featural generalization of visual perceptual learning (VPL) revealed in the effects of category learning on VPL

2016 ◽  
Vol 16 (12) ◽  
pp. 28
Author(s):  
Qingleng Tan ◽  
Takeo Watanabe
Keyword(s):  
Perceptual Learning ◽  
Category Learning ◽  
Rule Based ◽  
Visual Perceptual Learning

scholarly journals Role of endogenous and exogenous attention in task-relevant visual perceptual learning

PLoS ONE ◽  
2020 ◽  
Vol 15 (8) ◽  
pp. e0237912
Author(s):  
Kieu Ngoc Nguyen ◽  
Takeo Watanabe ◽  
George John Andersen
Keyword(s):  
Perceptual Learning ◽  
Exogenous Attention ◽  
Visual Perceptual Learning

Preliminary evidence for a role of the personality trait in visual perceptual learning

2017 ◽  
Vol 139 ◽  
pp. 22-27 ◽  
Author(s):  
Mingxia Zhang ◽  
Jiangbo Tu ◽  
Bo Dong ◽  
Chuansheng Chen ◽  
Min Bao
Keyword(s):  
Perceptual Learning ◽  
Personality Trait ◽  
Preliminary Evidence ◽  
Visual Perceptual Learning

scholarly journals Rule-Based Learning Explains Visual Perceptual Learning and Its Specificity and Transfer

2010 ◽  
Vol 30 (37) ◽  
pp. 12323-12328 ◽  
Author(s):  
J.-Y. Zhang ◽  
G.-L. Zhang ◽  
L.-Q. Xiao ◽  
S. A. Klein ◽  
D. M. Levi ◽  
...  
Keyword(s):  
Perceptual Learning ◽  
Rule Based ◽  
Visual Perceptual Learning

scholarly journals The causal role of transcranial alternating current stimulation at alpha frequency in boosting visual perceptual learning

2021 ◽  
Author(s):  
Qing He ◽  
Baoqi Gong ◽  
Keyan Bi ◽  
Fang Fang
Keyword(s):  
Perceptual Learning ◽  
Discrimination Learning ◽  
Alternating Current ◽  
Causal Role ◽  
Orientation Discrimination ◽  
Visual Perceptual Learning ◽  
Specific Manner ◽  
Transcranial Alternating Current Stimulation ◽  
40 Hz

Extensive training improves our ability to perceive visual contents around us, a phenomenon known as visual perceptual learning (VPL). Numerous studies have been conducted to understand the mechanisms of VPL, while the neural oscillatory mechanisms underpinning VPL has yet to be elucidated. To this end, we adopted transcranial alternating current stimulation (tACS), a neuromodulatory technique that can alter ongoing brain rhythms in a frequency-specific manner by applying external weak electric fields, to stimulate targeted cortical areas in human subjects while they performed an orientation discrimination learning task. Five groups of subjects undertook five daily training sessions to execute the task. Four groups received occipital tACS stimulation at 10 Hz (alpha band), 20 Hz (beta band), 40 Hz (gamma band), or sham 10 Hz (sham), and one group was stimulated at the sensorimotor regions by 10 Hz tACS. Compared with the sham stimulation, occipital tACS at 10 Hz, but not at 20 Hz or 40 Hz, increased both the learning rate and performance improvement. However, when 10 Hz tACS was delivered to the sensorimotor areas, the modulatory effects of tACS were absent, suggesting that tACS modulated the orientation discrimination learning in a frequency- and location-specific manner. Moreover, the tACS-induced enhancement lasted at least two months after the termination of training. Our findings provide strong evidence for the causal role of alpha oscillations in VPL and shed new light on the design of effective neuromodulation protocols that might facilitate rehabilitation for patients with neuro-ophthalmological disorders.

scholarly journals Using Melatonin to Study the Role of Sleep Architecture in Visual Perceptual Learning.

2013 ◽  
Vol 13 (9) ◽  
pp. 911-911
Author(s):  
J. Arizpe ◽  
M. Shrotri ◽  
C. Baker ◽  
V. Walsh
Keyword(s):  
Perceptual Learning ◽  
Sleep Architecture ◽  
Visual Perceptual Learning

scholarly journals Disentangling locus of perceptual learning in the visual hierarchy of motion processing

2018 ◽  
Author(s):  
Ruyuan Zhang ◽  
Duje Tadin
Keyword(s):  
Perceptual Learning ◽  
Visual Processing ◽  
Middle Level ◽  
Motion Processing ◽  
Cognitive Changes ◽  
Motion Direction ◽  
Visual Perceptual Learning ◽  
Visual Hierarchy ◽  
High Level

ABSTRACTVisual perceptual learning (VPL) can lead to long-lasting perceptual improvements. While the efficacy of VPL is well established, there is still a considerable debate about what mechanisms underlie the effects of VPL. Much of this debate concentrates on where along the visual processing hierarchy behaviorally relevant plasticity takes place. Here, we aimed to tackle this question in context of motion processing, a domain where links between behavior and processing hierarchy are well established. Specifically, we took advantage of an established transition from component-dependent representations at the earliest level to pattern-dependent representations at the middle-level of cortical motion processing. We trained two groups of participants on the same motion direction identification task using either grating or plaid stimuli. A set of pre- and post-training tests was used to determine the degree of learning specificity and generalizability. This approach allowed us to disentangle contributions from both low- and mid-level motion processing, as well as high-level cognitive changes. We observed a complete bi-directional transfer of learning between component and pattern stimuli as long as they shared the same apparent motion direction. This result indicates learning-induced plasticity at intermediate levels of motion processing. Moreover, we found that motion VPL is specific to the trained stimulus direction, speed, size, and contrast, highlighting the pivotal role of basic visual features in VPL, and diminishing the possibility of non-sensory decision-level enhancements. Taken together, our study psychophysically examined a variety of factors mediating motion VPL, and demonstrated that motion VPL most likely alters visual computation in the middle stage of motion processing.

P124 Neuromodulation of visual perceptual learning in ageing: The role of activity and cortical connectivity

2020 ◽  
Vol 131 (4) ◽  
pp. e82
Author(s):  
M. Bortoletto ◽  
A. Fertonani ◽  
C. Pirulli ◽  
A. Bollini ◽  
C. Miniussi
Keyword(s):  
Perceptual Learning ◽  
Cortical Connectivity ◽  
Visual Perceptual Learning
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