Recognition and concealment: Proposing a new cognitive process model for the concealed information test

2016 Fiscal Year Final Research Report

• Project/Area Number: 24730640
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Experimental psychology
• Research Institution: National Research Institute of Police Science
• Principal Investigator: Matsuda Izumi 科学警察研究所, 法科学第四部, 主任研究官 (80356162)
• Co-Investigator(Renkei-kenkyūsha): NITTONO Hiroshi 大阪大学, 人間科学研究科, 教授 (20304371)
• Project Period (FY): 2012-04-01 – 2017-03-31
• Keywords: 隠匿情報検査 / 隠蔽 / 記憶 / 事象関連電位 / 自律神経系反応 / 自動的処理 / 制御的処理 / 抑制

Outline of Final Research Achievements

The concealed information test (CIT) is used for criminal investigations and examines an examinee’s recognition on crime-relevant information from physiological responses. Although the CIT is a recognition detection test, the CIT is performed only when the examinee may be concealing the crime-relevant information. The present study manipulated the intention to conceal during the CIT and decomposed physiological responses into recognition- and concealment-related responses. The recognition of crime-relevant information elicited orienting responses, because the information is significant for the examinee. In contrast, the intention to conceal elicited controlled process to monitor and inhibit the orienting responses. On the basis of these findings, I proposed a cognitive process model for the CIT.

Free Research Field

心理生理学，犯罪心理学