Event-Related Potentials and Motor Response differences in Low and High IQ Groups | Diferencias en potenciales evocados de larga latencia y respuesta motriz en sujetos con alto y bajo CI

Journal article


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Publication Details

Author list: Fernández, A., Ortiz, T., Maestú, F., Martínez, E., Robles, J.I., De Léon, M.G.
Publisher: Colegio Oficial de Psicólogos del Principado de Asturias / Cologio Oficial de Psicólogos del Principado
Publication year: 1999
Volume number: 11
Issue number: 1
Start page: 53
End page: 63
Number of pages: 11
ISSN: 0214-9915
Languages: English-Great Britain (EN-GB)


This research aims to demostrate the relationship between components of event-re-lated potentials, motor response and IQ. Twenty participants were divided in two groups: IQ higher than 110, and lower than 84. We recorded long latency potentials from vertex, concurrently with electromiogram and reaction time. We found that correlations between negative latencies of ERPs associated with the end of the movement -N200 for frequent tone and N300 for rare tone-, and the interval of movement time was larger in the low IQ group. Amplitudes of ERPs in the low IQ group, in response to stimuli without motor response, were larger than amplitudes in the high IQ group. Our results suggets than intelligence is related to negative components of evoked potentials and timing of motor response.


Neuropsychology, Neuroscience


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Last updated on 2019-10-08 at 00:15