Abstract:
:Reading demands precise and efficient letter and word processing. This event-related potentials (ERP) study utilized massive repetition of visually presented single letters to trigger neuronal adaptation. Our aim was to explore whether the adaptation pattern of the N170 ERP component, serving as an indicator of neuronal response specificity, would differ for two reader groups. Forty German students, divided at the median into slow and fast readers, accomplished a visual oddball paradigm. ERPs of standard stimuli were computed separately for the first, second, and third part of the experiment. ERP waveforms and independent component analyses showed two subcomponents within the N170 time window. For both reader groups, the ERP amplitudes decreased over the time course of the experiment; however, only faster readers showed a subcomponent-specific adaptation response, restricted to the earlier N170 part. Results may reflect different degrees of neuronal response specificity in slow and fast readers, which might serve as a promising indicator for interindividual differences in visual recognition tasks such as reading.
journal_name
Neuroreportjournal_title
Neuroreportauthors
Korinth SP,Sommer W,Breznitz Zdoi
10.1097/WNR.0b013e32835d20b1subject
Has Abstractpub_date
2013-01-23 00:00:00pages
96-100issue
2eissn
0959-4965issn
1473-558Xpii
00001756-201301230-00009journal_volume
24pub_type
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