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（特に重要な文献については，番号をゴシック体で表記している．

著者プロフィール

飛松 省三（とびまつ しょうぞう）

福岡国際医療福祉大学視能訓練学科教授．医学博士

◆略歴 1955 年生まれ．1979 年九州大学医学部卒業．九州大学医学部附属病院研修医を経て 1983

年九州大学医学部脳研神経内科助手．1985 年医学博士（九州大学）．同年シカゴ・ロヨラ大

学医学部神経内科客員研究員．1987 年九州大学医学部脳研生理助手．1991 年脳研臨床神

経生理講師．1999 年九州大学大学院医学系研究科脳研臨床神経生理教授．2000 年九州大

学大学院医学研究院脳研臨床神経生理教授．2020 年より現職．

◆研究テーマ 非侵襲的脳機能計測法を用いたヒトの感覚・運動情報処理機構の解析，高次脳機能

の脳内基盤の解明 .

◆趣味 水泳，食べ歩き

76

Unlocking the Mysteries of the Human Brain

Shozo TOBIMATSU

Department of Clinical Neurophysiology, Neurological Institute,

Graduate School of Medical Sciences, Kyushu University

Abstract

The neocortex of the human brain is highly developed compared with those of the other mammals.

For instance, the logarithm of human brain weight is non-linear to the logarithm of body weight.

Human has specialized brain areas that process the face and language. To unlock the complex

functions of the human brain, it is necessary to explore the human brain non-invasively. So far,

high-density electroencephalo-graphy (EEG), magnetoencephalography (MEG) and functional

magnetic resonance imaging (fMRI) are available in the field of Clinical Neurophysiology.

More than 25% of information from the real world is processed by the visual system. Human visual

system consists of multiple, parallel channels which process different information, and each channel

constitutes a set of sequential processes. There are two major visual streams ; The magnocellular (M)

and parvocellular (P) pathways. The M pathway is fast conducting and specialized for processing

transient information. Thus, the M pathway is most sensitive to stimuli with low spatial and high

temporal frequencies and provides information on motion and stereopsis. The P pathway is more

sensitive to higher spatial and lower temporal frequencies and processes color information and face

perception.

Once the functions of the parallel visual pathways are disrupted or modulated by the disease

pathology, higher cognitive functions are significantly altered. My interest is to solve the mystery of

the human brain with scientific approach. Thus, I have been studying the mechanisms of the

neuropsychiatric diseases. Accordingly, the possible pathophysiological mechanisms of chromatic

sensitive epilepsy, mild cognitive impairment and autism spectrum disorder have been established in

terms of the altered parallel visual processing.

Key words : Electrodiagnosis, Parallel visual pathways, Optimal visual stimuli, Evoked potentials,

Neuropsychiatric diseases

...