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Titolo:
Frequency representation in the human hand somatosensory cortex: a reappraisal
Autore:
Hashimoto, I; Saito, Y; Iguchi, Y; Kimura, T; Fukushima, T; Terasaki, O; Sakuma, K;
Indirizzi:
Tokyo Inst Psychiat, Dept Psychophysiol, Setagaya Ku, Tokyo, Japan Tokyo Inst Psychiat Tokyo Japan sychophysiol, Setagaya Ku, Tokyo, Japan Natl Inst Physiol Sci, Dept Integrat Physiol, Okazaki, Aichi 444, Japan Natl Inst Physiol Sci Okazaki Aichi Japan 444 , Okazaki, Aichi 444, Japan Ashikaga Inst Technol, Dept Ind & Syst Engn, Ashikaga, Japan Ashikaga InstTechnol Ashikaga Japan t Ind & Syst Engn, Ashikaga, Japan Tsukuba Coll TEchnol, Dept Acupuncture, Tsukuba, Ibaraki, Japan Tsukuba Coll TEchnol Tsukuba Ibaraki Japan ture, Tsukuba, Ibaraki, Japan
Titolo Testata:
NEUROREPORT
fascicolo: 5, volume: 10, anno: 1999,
pagine: 959 - 963
SICI:
0959-4965(19990406)10:5<959:FRITHH>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
PSYCHOPHYSICAL MEASUREMENTS; INHIBITORY INTERNEURONS; MONKEYS; NEURONS; EVENTS; RABBIT;
Keywords:
human; frequency representation; index finger; somatosensory cortex; somatosensory evoked magnetic fields; vibratory stimulation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Hashimoto, I Tokyookyo, Psychiat, Dept Psychophysiol, Setagaya Ku, 2-1-8 Kamikitazawa, T Tokyo Inst Psychiat 2-1-8 Kamikitazawa Tokyo Japan azawa, T
Citazione:
I. Hashimoto et al., "Frequency representation in the human hand somatosensory cortex: a reappraisal", NEUROREPORT, 10(5), 1999, pp. 959-963

Abstract

FREQUENCY organization in the human primary somatosensory cortex (SI) was re-examined. Somatosensory evoked magnetic fields (SEFs) were measured witha 37 channel first-order axial gradiometer system. Sensory stimuli comprising a 20 ms vibration at frequencies of 50, 100, 200 and 400 Hz were delivered to the volar surface of the tip of the right index finger. Using a single dipole model, the sources of the first main peak (M50) of SEFs were estimated. All of the sources were located in the 3b area. There were no statistically significant differences between the locations of the dipoles evokedby different frequency stimulations. These results support our previous study using a 122 channel whole head planar gradiometer system that systematic frequency organization at the hand area of SI cortex may not be present in humans. NeuroReport 10:959-963 (C) 1999 Lippincott Williams & Wilkins.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 10:20:56