Testing the effects of transcranial direct current stimulation (tDCS) on the face inversion effect and the N170 event-related potentials (ERPs) component
| Autor: | Ciro Civile, Samantha Quaglia, Brad Wooster, Aureliu Lavric, Rossy McLaren, Adam Curtis, Emika Waguri, Ian P. L. McLaren |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
medicine.medical_specialty
Anodal tdcs Cognitive Neuroscience medicine.medical_treatment Experimental and Cognitive Psychology Audiology Electroencephalography Transcranial Direct Current Stimulation behavioral disciplines and activities Facial recognition system 050105 experimental psychology 03 medical and health sciences Behavioral Neuroscience 0302 clinical medicine Perceptual learning Event-related potential medicine Reaction Time Humans Learning 0501 psychology and cognitive sciences Evoked Potentials medicine.diagnostic_test Transcranial direct-current stimulation 05 social sciences Recognition Psychology body regions Pattern Recognition Visual Psychology Facial Recognition 030217 neurology & neurosurgery Photic Stimulation |
| Zdroj: | Neuropsychologia. 143 |
| ISSN: | 1873-3514 |
| Popis: | The following study investigates the effects of tDCS on face recognition skills indexed by the face inversion effect (better recognition performance for upright vs. inverted faces). We combined tDCS and EEG simultaneously to examine the effects of tDCS on the face inversion effect behaviourally and on the N170 ERPs component. The results from two experiments (overall N = 112) show that anodal tDCS delivered at Fp3 site for 10 min at 1.5 mA (double-blind and between-subjects) can reduce behaviourally the face inversion effect compared to sham (control) stimulation. The ERP results provide some evidence for tDCS being able to influence the face inversion effect on the N170. Specifically, we find a dissociation of the tDCS-induced effects where for the N170 latencies the tDCS reduces the usual face inversion effect (delayed N170 in response to inverted vs. upright faces) compared to sham. Contrarily, the same tDCS procedure on the same participants increased the inversion effect seen in the N170 amplitudes by making the negative deflection for the inverted faces that much greater than that for upright faces. We interpret our results in the context of the literature on the face inversion effect and the N170 peak component. In doing so, we extend our results to previous studies investigating the effects of tDCS on perceptual learning and face recognition. |
| Databáze: | OpenAIRE |
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