Cited by 26Visual perception and processing mechanismsNeural dynamics and brain functionNeural and Behavioral Psychology Studies

Perceptual Learning beyond Perception: Mnemonic Representation in Early Visual Cortex and Intraparietal Sulcus

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Jia, Ke, Li, Ya, Gong, Mengyuan, Huang, Hui, Wang, Yonghui, Li, Sheng·2021·The Journal of Neuroscience

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Abstract

The ability to discriminate between stimuli relies on a chain of neural operations associated with perception, memory and decision-making. Accumulating studies show learning-dependent plasticity in perception or decision-making, yet whether perceptual learning modifies mnemonic processing remains unclear. Here, we trained human participants of both sexes in an orientation discrimination task, while using functional magnetic resonance imaging (fMRI) and transcranial magnetic stimulation (TMS) to separately examine training-induced changes in working memory (WM) representation. fMRI decoding revealed orientation-specific neural patterns during the delay period in primary visual cortex (V1) before, but not after, training, whereas neurodisruption of V1 during the delay period led to behavioral deficits in both phases. In contrast, both fMRI decoding and disruptive effect of TMS showed that intraparietal sulcus (IPS) represented WM content after, but not before, training. These results suggest that training does not affect the necessity of sensory area in representing WM information, consistent with the sensory recruitment hypothesis in WM, but likely alters the coding format of the stored stimulus in this region. On the other hand, training can render WM content to be maintained in higher-order parietal areas, complementing sensory area to support more robust maintenance of information. SIGNIFICANCE STATEMENT There has been accumulating progresses regarding experience-dependent plasticity in perception or decision-making, yet how perceptual experience moulds mnemonic processing of visual information remains less explored. Here, we provide novel findings that learning-dependent improvement of discriminability accompanies altered WM representation at different cortical levels. Critically, we suggest a role of training in modulating cortical locus of WM representation, providing a plausible explanation to reconcile the discrepant findings between human and animal studies regarding the recruitment of sensory or higher-order areas in WM.

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Crossref · 10.1523/jneurosci.2780-20.2021

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  • Transfer has been observed from high-precision visual perception training to relatively low-precision WM tasks, but not in the reverse direction.

    “Consistent with this interpretation, transfer has been observed from high-precision visual perception training to relatively low-precision WM tasks (Jia et al., 2021), but not in the reverse direction (Cai et al., 2022).”

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Authors
Jia, K., Li, Y., Gong, M., Huang, H., Wang, Y., & Li, S.
Affiliations
  • Peking University (CN)
  • Shaanxi Normal University (CN)
  • Zhejiang University (CN)
Corresponding author
Li, Sheng
Venue
The Journal of Neuroscience
Published
2021-04-02
Volume
41
Issue
20
Pages
4476-4486
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W3146276902
Cited by
25
References
105
Citations by year
2026: 4 · 2025: 7 · 2024: 5 · 2023: 4 · 2022: 3 · 2021: 2
FWCI
1.84
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Key R&D Program of China (2017YFB1002503)
  • National Natural Science Foundation of China (31271081, 31230029, 31800910, 32000784)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
perceptual learning, primary visual cortex, intraparietal sulcus, orientation discrimination, experience-dependent plasticity, neural decoding, transcranial magnetic stimulation, memory maintenance, visual working memory
MeSH terms
Adolescent, Adult, Female, Humans, Learning, Magnetic Resonance Imaging, Male, Memory, Short-Term, Parietal Lobe, Visual Cortex, Visual Perception, Transcranial Magnetic Stimulation, Young Adult

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