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Titolo:
Perceptual and motor mechanisms for mental rotation of human hands
Autore:
Thayer, ZC; Johnson, BW; Corballis, MC; Hamm, JP;
Indirizzi:
Univ Auckland, Dept Psychol, Auckland 1, New Zealand Univ Auckland Auckland New Zealand 1 pt Psychol, Auckland 1, New Zealand
Titolo Testata:
NEUROREPORT
fascicolo: 16, volume: 12, anno: 2001,
pagine: 3433 - 3437
SICI:
0959-4965(20011116)12:16<3433:PAMMFM>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
PARIETAL CORTEX; BRAIN; TRANSFORMATIONS; IDENTIFICATION; TOMOGRAPHY; PREMOTOR;
Keywords:
brain mapping; event-related potential; mental rotation; object identification; topography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Johnson, BW Univ Auckland, Dept Psychol, Private Bag 92019, Auckland 1, New Zealand Univ Auckland Private Bag 92019 Auckland New Zealand 1 ealand
Citazione:
Z.C. Thayer et al., "Perceptual and motor mechanisms for mental rotation of human hands", NEUROREPORT, 12(16), 2001, pp. 3433-3437

Abstract

We measured brain potentials from human subjects performing a mental rotation task requiring right-left judgments of misoriented hands, and a controltask requiring palm-back judgments of the same stimuli. High-density, 128-channel event-related potentials (ERPs) were recorded from 16 normal, right-handed subjects. There was a main effect of task at five different latencies: 148 ms (occipital), 180 ms (parietal), 388 ms (vertex), 556 ms (central-parietal), and 900 ms. (vertex). Source estimations derived from topographic data indicate that frontal brain. regions were strongly activated after 300 ms in the control task, but not until about 900 ms in the rotation task. We conclude that the neural computations underlying mental hand rotation may be recruited from relatively early stages of visuo-perceptual analysis;these early computations influence subsequent processing within a parietal-prefrontal system for the integration of perception with action. (C) 2001 Lippincott Williams & Wilkins.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 16:27:06