Non-invasive electrical brain stimulation modulates human conscious perception of mental representation.
Neuroimage
; 294: 120647, 2024 Jul 01.
Article
in En
| MEDLINE
| ID: mdl-38761552
ABSTRACT
Mental representation is a key concept in cognitive science; nevertheless, its neural foundations remain elusive. We employed non-invasive electrical brain stimulation and functional magnetic resonance imaging to address this. During this process, participants perceived flickering red and green visual stimuli, discerning them either as distinct, non-fused colours or as a mentally generated, fused colour (orange). The application of transcranial alternating current stimulation to the medial prefrontal region (a key node of the default-mode network) suppressed haemodynamic activation in higher-order subthalamic and central executive networks associated with the perception of fused colours. This implies that higher-order thalamocortical and default-mode networks are crucial in humans' conscious perception of mental representation.
Key words
Full text:
1
Database:
MEDLINE
Main subject:
Magnetic Resonance Imaging
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Consciousness
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Transcranial Direct Current Stimulation
Limits:
Adult
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Female
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Humans
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Male
Language:
En
Year:
2024
Type:
Article