Effects of attentional modification on prepusle inhibition of the auditory stimulus.

2019 Fiscal Year Final Research Report

• Project/Area Number: 17K04508
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Experimental psychology
• Research Institution: Shizuoka Sangyo University
• Principal Investigator: Yamada Kazuyuki 静岡産業大学, 経営学部(磐田), 教授 (50212288)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Keywords: 認知バイアス / 驚愕反応 / プレパルス抑制

Outline of Final Research Achievements

The effects of cognitive bias (attentional bias) on acoustic startle response (ASR) and its prepulse inhibition (PPI) were psychologically investigated. Regarding the effects of attentional manipulation by classical fear conditioning on acoustic stimuli, the results of previous studies (shock potentiated startle: Grillon et al., 1991) were reproduced. In addition, the extinction of conditioning and latent inhibition procedures did not significantly affect ASR and PPI. On the other hand, it was suggested that ASR and PPI may be significantly affected by each participant’s individual cognitive bias. Furthermore, we devised an inexpensive and movable ASR measurement system using a commercially available wearable device and a microcomputer board and confirmed that similar results could be obtained even if the measurement location was changed.

Free Research Field

実験心理学

Academic Significance and Societal Importance of the Research Achievements

古典的恐怖条件付けを用いた聴覚刺激に対する注意操作の効果は、刺激に対する恐怖属性の付与によるASRおよびPPIの増強効果という従来の研究結果を再現するにとどまったが、聴覚性驚愕反応のみならずASRおよびPPIが被験者個人の認知バイアスによって大きく影響を受ける可能性があるということを示した点において、認知心理学・生理心理学にとどまらず、臨床心理学的にも貢献できるものと言える。また、移動可能な簡易型聴覚性驚愕反応測定装置の開発と運用試験は、大規模な実験施設を持たない心理学コースにおいても利用可能な教育資源として、学部レベルの心理学教育に貢献できるものと言える。