Developmental changes in the event-related EEG theta response and P300

Yordanova, Juliana and Kolev, Vasil (1997) Developmental changes in the event-related EEG theta response and P300. [Journal (Paginated)]

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Event-related potentials (ERPs) from 50 children (6 to 11 years) and ten adults were elicited by auditory passive, and by rare target and frequent nontarget stimuli, and analyzed in the time and frequency domains. The latency of the maximal theta response (or the theta frequency component of the ERP) was evaluated with respect to age and scalp topography effects. The major findings were: (1) The latency of the maximal theta response decreased with increasing age in children, although for each stimulus type and location adults had shorter latencies than the children. (2) The developmental time course of latency reduction depended on the electrode location, with the most prominent reduction occurring at 8 years at Cz, and no differences between children groups obtained for the frontal site. (3) Maximal theta response latency was strongly associated with the latency of the late parietal P400-700 (P3b) component in children. The results suggest that the developmental latency decrease in P300 processes originate from a decrease in the preceding theta-related processes and may reflect a speeding of cognitive stimulus evaluation.

Item Type:Journal (Paginated)
Keywords:Children; Event-related potentials; Theta response; P300-wave
Subjects:Psychology > Applied Cognitive Psychology
Neuroscience > Behavioral Neuroscience
Neuroscience > Biophysics
Psychology > Cognitive Psychology
Psychology > Developmental Psychology
Neuroscience > Neurophysiology
Neuroscience > Neuropsychology
Psychology > Physiological Psychology
ID Code:55
Deposited By: Kolev, Vasil
Deposited On:04 Aug 1998
Last Modified:11 Mar 2011 08:53


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