Visual memory improved by non-invasive brain stimulation
Autor: | Allan Snyder, Richard P. Chi, Felipe Fregni |
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Rok vydání: | 2010 |
Předmět: |
Adult
Male Signal Detection Psychological Adolescent medicine.medical_treatment Central nervous system Biophysics Stimulation Neuropsychological Tests Temporal lobe Young Adult Visual memory Memory medicine Humans Molecular Biology Analysis of Variance Transcranial direct-current stimulation General Neuroscience Brain Electroencephalography Cognition Transcranial Magnetic Stimulation Electric Stimulation medicine.anatomical_structure Brain stimulation Visual Perception Female Neurology (clinical) Psychology Neuroscience Photic Stimulation Neurotypical Developmental Biology |
Zdroj: | Brain Research. 1353:168-175 |
ISSN: | 0006-8993 |
DOI: | 10.1016/j.brainres.2010.07.062 |
Popis: | Our visual memories are susceptible to errors, but less so in people who have a more literal cognitive style. This inspired us to attempt to improve visual memory with non-invasive brain stimulation. We applied 13 min of bilateral transcranial direct current stimulation (tDCS) to the anterior temporal lobes. Our stimulation protocol included 3 conditions, each with 12 neurotypical participants: (i) left cathodal stimulation together with right anodal stimulation, (ii) left anodal stimulation together with right cathodal stimulation, and (iii) sham (control) stimulation. Only participants who received left cathodal stimulation (decrease in excitability) together with right anodal stimulation (increase in excitability) showed an improvement in visual memory. This 110% improvement in visual memory was similar to the advantage people with autism, who are known to be more literal, show over normal people in the identical visual task. Importantly, participants receiving stimulation of the opposite polarity (left anodal together with right cathodal stimulation) failed to show any change in memory performance. This is the first demonstration that visual memory can be enhanced in healthy people using non-invasive brain stimulation. |
Databáze: | OpenAIRE |
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