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記事タイトル
ipRGC（メラノプシン細胞）を考慮した視覚科学序論
発刊年月日
2026年11月　Vol.110　第6号
著者名
岡嶋 克典
山川 昌彦
山田 翔吾
瀬川 かおり
鍵本 明里
企業・団体名
横浜国立大学
記事種別
特集資料・講演など
抄録（ABSTRACT）
In recent years,it has become increasingly clear that melanopsin-containing cells (ipRGCs) also influence visual perception. We also demonstrated that the melanopsin response contributes to brightness perception and that,under certain conditions,its contribution to brightness perception exceeds 50 percent. Furthermore,the perception of spatial brightness is influenced by the melanopsin stimulation and the time of day. Regarding discomfort glare,we also showed that even light with the same luminance and chromaticity can produce different levels of glare depending on the amount of melanopsin stimulation. Furthermore,it has been experimentally demonstrated that ipRGCs are involved in color vision,causing different changes in color perception between central and peripheral vision,and that they also influence the perception of blackness. These results suggest that vision science needs to be reconceptualized based on a "five-component visual system" that also takes ipRGCs into account.
図表タイトル

図１ ５元視覚系の模式図 Fig.1 Schematic diagram of Five-Component Visual System.

キーワード
色知覚 | color perception | 明るさ知覚 | brightness perception | 内因性光感受性網膜神経節細胞 | 黒み知覚 | melanopsin cell | discomfort glare | blackness perception | メラノプシン細胞 | 不快グレア | ipRGC

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