著者

小川 時洋 松田 いづみ 常岡 充子

出版者

公益社団法人 日本心理学会

雑誌

心理学研究 (ISSN:00215236)

巻号頁・発行日

vol.90, no.4, pp.426-432, 2019 (Released:2019-10-25)

参考文献数

20

被引用文献数

3

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Few studies have examined serial physiological variations during the concealed information test (CIT). This study analyzed both pre- and post-stimulus physiological measures from a CIT experiment under knowledgeable and unknowledgeable conditions. The physiological measures assessed in both the pre- and post- stimulus phases included skin conductance level (SCL), normalized pulse volume (NPV), and heart rate (HR). Moreover, skin conductance response (SCR) was assessed in the post-stimulus phase. The results showed that the post-stimulus SCL and SCR and post-stimulus NPV in the knowledgeable condition differed not only between the relevant and irrelevant CIT items but also between the irrelevant items that were presented before and after the relevant items. In both knowledgeable and unknowledgeable conditions, physiological activities and reactivity were higher at early positions than at late ones. However, in the knowledgeable conditions, serial positions of the relevant items modulated this tendency, such that physiological activities were maintained until the relevant item was presented and then declined afterwards. The practical and theoretical implications of these findings are discussed.

著者

小川 時洋 松田 いづみ 常岡 充子

出版者

日本法科学技術学会

雑誌

日本法科学技術学会誌 (ISSN:18801323)

巻号頁・発行日

vol.18, no.1, pp.35-44, 2013 (Released:2013-02-20)

参考文献数

20

被引用文献数

10 12

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Currently, polygraph examinations in Japan use the concealed information test (CIT) to determine whether a suspect knows specific details of a crime. The present study examined the accuracy of the CIT as a memory detection technique in a mock-theft experiment. Participants were randomly assigned to either an encoding or non-encoding group. An expert polygrapher who was not informed of the group assignments, conducted a CIT that consisted of two questions. One inquired about a card number chosen by the participant, and the other regarded an item that had been stolen. Analyses focused on the second question. Roughly 20% of cases were judged inconclusive while sensitivity and specificity for the remaining cases were 86% and 95%, respectively. Analysis was repeated using modified Lykken scoring, and rates of inconclusive cases, sensitivity, and specificity by this method were 25%, 83%, and 91%, respectively.

著者

松田 いづみ

出版者

心理学評論刊行会

雑誌

心理学評論 (ISSN:03861058)

巻号頁・発行日

vol.59, no.2, pp.162-181, 2016 (Released:2018-04-13)

参考文献数

113

被引用文献数

12

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Deception, especially unexpressed deception, concealment, is difficult to detect from words and behavior. Thus, psychophysiological approaches are used to detect deception. One such approach is the Concealed Information Test (CIT). The CIT is used in criminal investigations to examine a subject’s concealing of a memory through autonomic and/or central nervous activities. In contrast, psychophysiologists generally infer cognitive processes from physiological responses. This study aimed to reveal the cognitive processes of concealing the memory by reviewing physiological responses during the CIT. We demonstrated that the intent to conceal memory (or withdrawal motivation) would increase the significance of the memory and recruit controlled processes, such as monitoring and inhibition of physiological responses.

著者

小川 時洋 松田 いづみ 常岡 充子

出版者

公益社団法人 日本心理学会

雑誌

心理学研究 (ISSN:00215236)

巻号頁・発行日

pp.91.19016, (Released:2020-09-15)

参考文献数

28

被引用文献数

2

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The present study focused on temporal changes of physiological activities within trials during the concealed information test (CIT). Participants were assigned to two groups with an inter-stimulus interval (ISI) of 50 or 25 seconds in the CIT. A relevant item was a piece of jewelry that a participant stole in the preceding mock theft task. Measures were skin conductance level (SCL), skin conductance response (SCR), heart rate (HR), normalized pulse volume (NPV), and self-reported arousal and surprise. The results showed that physiological changes in response to irrelevant items tended to return to pre-stimulus levels within 25 seconds. Physiological recoveries were slower for SCL and HR but faster for NPV for the relevant item than for irrelevant items. Pre-stimulus physiological levels were maintained until the relevant item was presented and then declined, which was similar to the peak of tension effect. Results in the self-reported measures were in line with the physiological measures. Practical and theoretical implications were discussed.

著者

小川 時洋 松田 いづみ 常岡 充子

出版者

公益社団法人 日本心理学会

雑誌

心理学研究 (ISSN:00215236)

巻号頁・発行日

pp.90.18315, (Released:2019-07-10)

参考文献数

20

被引用文献数

3

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Few studies have examined serial physiological variations during the concealed information test (CIT). This study analyzed both pre- and post-stimulus physiological measures from a CIT experiment under knowledgeable and unknowledgeable conditions. The physiological measures assessed in both the pre- and post- stimulus phases included skin conductance level (SCL), normalized pulse volume (NPV), and heart rate (HR). Moreover, skin conductance response (SCR) was assessed in the post-stimulus phase. The results showed that the post-stimulus SCL and SCR and post-stimulus NPV in the knowledgeable condition differed not only between the relevant and irrelevant CIT items but also between the irrelevant items that were presented before and after the relevant items. In both knowledgeable and unknowledgeable conditions, physiological activities and reactivity were higher at early positions than at late ones. However, in the knowledgeable conditions, serial positions of the relevant items modulated this tendency, such that physiological activities were maintained until the relevant item was presented and then declined afterwards. The practical and theoretical implications of these findings are discussed.

著者

小川 時洋 松田 いづみ 常岡 充子

出版者

Japanese Society for Physiological Psychology and Psychophysiology

雑誌

生理心理学と精神生理学 (ISSN:02892405)

巻号頁・発行日

2015

被引用文献数

2

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隠匿情報検査(CIT)時の生理反応の特徴は,この分野の研究トピックスであり続けている。本研究では,関連項目の数が1個の場合と複数ある場合とで,生理反応および自己報告された感情を比較した。実験参加者は,模擬窃盗でアクセサリーを1個ないし3個盗むことを求められた。また,色の名前を示すカードを3枚ないし1枚,ブラインドで選択するよう求められた。次に実験参加者は,盗んだアクセサリーもしくは選んだ色の名前を尋ねるCITを受けた。生理測度における関連-非関連項目の差異は,関連項目が3個の場合には,関連項目が1個の場合に比べて小さくなった。自己報告測度は,実験参加者が関連項目提示時に驚きや緊張を感じていたことを示した。しかしながら,質問中の関連項目の数は,自己報告尺度の感情には影響しなかった。これらの結果は,CITの項目を感情喚起刺激とするプロセスの存在を示唆する。

著者

小川 時洋 廣田 昭久 松田 いづみ

出版者

日本基礎心理学会

雑誌

基礎心理学研究 (ISSN:02877651)

巻号頁・発行日

vol.26, no.2, pp.167-171, 2008-03-31 (Released:2016-12-01)

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Twenty-four male participants studied five consonant alphabets. They then performed an Implicit Association Test (IAT; Greenwald, McGhee, & Schwartz, 1998) that combined a recognition judgment (old vs. new) and a valence judgment (pleasant vs. unpleasant). Faster and more accurate responses were observed when old judgments and pleasant judgments share a same response key than when old judgments and unpleasant judgments share a same response key. These results indicated that the studied items were associated with a positive evaluation. The results were discussed in terms of related phenomena, such as a mere acceptance effect. Some theoretical implications about the relationship between memory and affect were also discussed.

著者

松田 いづみ 廣田 昭久 小川 時洋

出版者

日本生理心理学会

雑誌

生理心理学と精神生理学 (ISSN:02892405)

巻号頁・発行日

vol.35, no.1, pp.43-50, 2017-04-30 (Released:2019-03-26)

参考文献数

19

被引用文献数

2

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隠匿情報検査では,被検査者が犯罪関連情報を認識しているかを調べる。本研究では,隠匿情報検査において,鼻尖部の皮膚血流量を測った。参加者20名が,犯罪関連項目を認識している条件としていない条件で隠匿情報検査を受けた。鼻尖血流量は,認識がある項目に対して,認識がない項目に対してよりも低下した。この鼻尖血流量の時間的な変化は,隠匿情報検査の既存の指標である指尖血流量とは異なっていた。また,鼻尖血流量により,各参加者の犯罪関連情報に対する認識の有無を有意に正しく判定できた。本研究の結果は,鼻尖血流量が隠匿情報検査の新たな指標になりうることを示している。