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多摩の知覚なヒトたちの会


タマチカとは?
知覚に関する研究発表や読み会をする会です.中央大学文学部山口研究室にて,月1〜2回程度の頻度で開かれています.当初は参加者の殆どが多摩地区在住だったので,多摩の知覚なヒトたちの会(略してタマチカ)という名前になったようです.多摩在住の方でなくても参加可能ですので,ご興味のある方はぜひご参加下さい.


【2015年度 第1回】
日時:2016年 1月30日(土)15:00-16:30
場所:中央大学 駿河台記念館6階 620号室
講師:Viola Macchi Cassia先生(University of Milano-Bicocca、教授)

タイトル:
How experience shapes face processing abilities in infancy and beyond: evidence from the age bias
アブストラクト:
Much evidence suggests that face representation constantly adapts to reflect the individual’s current social and perceptual experience, giving rise to a number of face processing biases. Nevertheless, little is known about whether the plasticity of these biases varies across the lifespan. I will present evidence from a series of studies with infants and adults showing that face representation remains plastic into adulthood, but plasticity decreases with age. Research with infants has shown that between 3 and 9 months face discrimination abilities narrow, resulting in perceptual tuning (i.e., perceptual narrowing) towards over-experienced face categories that are most frequent and relevant in the infant’s environment and decreased sensitivity to non-relevant face types. Using behavioral (visual habituation), electrophysiological (EEG) and neuroimaging (fNIRS) paradigms we showed that during the same time-window infants' face processing abilities tune towards adult faces. However, natural experience acquired from birth with an older sibling's face prevents such tuning to occur, allowing 9-month-olds to maintain the ability to discriminate child faces. Finally, in a series of studies conducted with adult women who, as first-time mothers, are exposed to the face of their child, we showed that the only condition in which later-acquired experience affects performance is when early exposure to a sibling’s face occurred in the participant's first 3 years of life. The reactivation effect engendered by later-acquired experience is already apparent after 4 months of exposure to the child's face, and that the effects of early-acquired experience are still visible after 12 months of exposure. Overall, these findings show that visual experience acquired in the first 9 months of life has a critical role in the emergence of neurocognitive specialization for adult faces, and it has continuous effects into adulthood, as it preserves the system from the loss of plasticity that would otherwise take place.

●会場までの交通案内につきましては、下記URLをご参照ください。
中央大学 駿河台記念館への交通アクセスガイド
http://www.chuo-u.ac.jp/access/surugadai/
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