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Titolo:
Effects of pubertal timing on EEG coherence and P3 latency
Autore:
Kaiser, J; Gruzelier, JH;
Indirizzi:
Univ Tubingen, Inst Med Psychol & Behav Neurobiol, D-72074 Tubingen, Germany Univ Tubingen Tubingen Germany D-72074 robiol, D-72074 Tubingen, Germany Univ London Imperial Coll Sci Technol & Med, Sch Med, Dept Behav & Cognit Sci, London W6 8RP, England Univ London Imperial Coll Sci Technol & Med London England W6 8RP ngland
Titolo Testata:
INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY
fascicolo: 3, volume: 34, anno: 1999,
pagine: 225 - 236
SICI:
0167-8760(199912)34:3<225:EOPTOE>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
EVENT-RELATED POTENTIALS; HUMAN CEREBRAL HEMISPHERES; BRAIN-DEVELOPMENT; SYNAPTIC DENSITY; VISUAL-CORTEX; SCHIZOPHRENIA; AGE; CHILDREN; HYPOTHESIS; SCHIZOTYPY;
Keywords:
pubertal timing; synaptic pruning; EEG coherence; P3 latency;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
67
Recensione:
Indirizzi per estratti:
Indirizzo: Kaiser, J Univ Tubingen, Inst Med Psychol & Behav Neurobiol, Gartenstr 29,D-72074 Tubingen, Germany Univ Tubingen Gartenstr 29 Tubingen Germany D-72074 en, Germany
Citazione:
J. Kaiser e J.H. Gruzelier, "Effects of pubertal timing on EEG coherence and P3 latency", INT J PSYCP, 34(3), 1999, pp. 225-236

Abstract

Neurodevelopmental approaches to schizophrenia emphasise the role of late brain maturational events. Abnormalities here may account for both the putative cortico-cortical underconnectivity in schizophrenia and its typical onset in late adolescence. Saugstad hypothesised that maturational rate at puberty may lead to an extension of normal maturational processes such as synaptic pruning. In extreme late maturers pruning was thought to be prolonged, leading to reduced numbers of synapses and an increased risk for schizophrenia. Here we assessed the effects of pubertal timing extremes on EEG coherence and P3 latency as putative measures of brain development in N = 37 healthy adults. During photic stimulation late maturing males showed increased left-hemispheric coherence compared with male early maturers. This was inline with earlier findings (Kaiser, J., Gruzelier, J.H., 1996. Timing of puberty and EEG coherence during photic stimulation. Int. J. Psychophysiol. 21, 135-149). As expected, P3 latency was shorter in late compared with early maturers. However, this was true only for females, whereas there was no difference in males. These results are consistent with the notion of an exaggeration of normal maturational changes in slow maturation, whereby the underlying process appears to be different for males and females. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/01/20 alle ore 14:46:06