P290 Transcranial direct current stimulation over the left and the right prefrontal cortex differentially affects pattern recognition in language domain. Issue 3 (March 2017)

• Record Type: Journal Article
• Authors: Horváth, K.; Zavecz, Z.; Illyés, Z.; Janacsek, K.; Nemeth, D.
• Is Part Of: Clinical neurophysiology. Volume 128:Issue 3(2017:Mar.)
• Page Start: e152
• Publication Date: 2017-03
• Subjects: Neurophysiology -- Periodicals; Electroencephalography -- Periodicals; Electromyography -- Periodicals; Neurology -- Periodicals; 612.8
• DOI: 10.1016/j.clinph.2016.10.398
• Languages: English
• ISSNs: 1388-2457

Abstract

Abstract : Recognition of elements and patterns in the environment is an evolutionary fundamental ability of ours. These processes are crucial in decision making, learning and memory. The prefrontal cortex has a key role in recognition of patterns both in visual and language domain. The aim of the present study was to directly investigate the causal role of the left and the right PFC in pattern recognition in language domain. Twenty healthy young adults participated in the experiment. Transcranial direct current stimulation (tDCS) was used in order to modify the neural excitability of the targeted brain areas (F3 or F4). The reference electrode was placed over Cz. Performance was tested by a new, ecologically valid word search task. We used a within subject design in which all of the participants received 20-min, 2 mA left PFC anodal, right PFC anodal or sham stimulation through three sessions, one week apart from each other. Our results can lead to a deeper understanding of the role of the prefrontal cortex in pattern extraction in language domain and hemispheric differences in this essential process.