Transcranial Direct Current Stimulation (tDCS) and the Face Inversion Effect: Anodal stimulation at Fp3 reduces recognition for upright faces
Civile, C; Obhi, S; McLaren, IPL
Date: 1 July 2017
Publisher
Cognitive Science Society
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Abstract
Perceptual learning is a key perceptual skill that people possess,
in particular, it contributes to their ability to distinguish between
faces thus recognize individuals. Recently, we showed that anodal
transcranial Direct Current Stimulation (tDCS) at Fp3 abolishes
the inversion effect (that would otherwise exist) for familiar
...
Perceptual learning is a key perceptual skill that people possess,
in particular, it contributes to their ability to distinguish between
faces thus recognize individuals. Recently, we showed that anodal
transcranial Direct Current Stimulation (tDCS) at Fp3 abolishes
the inversion effect (that would otherwise exist) for familiar
checkerboards created from a prototype. Because of the close
analogy between the inversion effect obtained with checkerboards,
which we use as a marker for perceptual learning, and the
traditional face inversion effect (upright faces recognized better
than inverted ones), we investigated the effects of anodal tDCS at
Fp3 during an old/new recognition task for upright and inverted
faces. Results showed that stimulation significantly reduced the
face inversion effect compared to controls. The effect was
strongest in reducing recognition performance to upright faces.
This result supports our account of perceptual learning and its role
as a key factor in face recognition
Psychology - old structure
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