目的:考察士兵针对内群体与外群体的评价性态度,验证是否存在内隐集体自尊效应。方法:通过Go/No-go联想测验(Go/No-go Association Task,GNAT)收集被试的行为数据(即d’和反应时),考查"部队群体-积极"与"非部队群体-积极...目的:考察士兵针对内群体与外群体的评价性态度,验证是否存在内隐集体自尊效应。方法:通过Go/No-go联想测验(Go/No-go Association Task,GNAT)收集被试的行为数据(即d’和反应时),考查"部队群体-积极"与"非部队群体-积极"、"部队群体-消极"以及"非部队群体-消极"之间的d’和反应时是否存在显著差异。结果:GNAT感受性指标上,任务条件的主效应显著,F(3,117)=20.15,P<0.01。反应时指标上,任务条件的主效应显著,F(3,117)=19.70,P<0.01。"非部队群体—积极"与"非部队群体—消极"之间的感受性指标与反应时上均不存在显著差异。结论:士兵群体中存在内隐集体自尊效应,内隐集体自尊并不是以贬低外群体为条件的。展开更多
To study the role of frontal neurons in pain and acupuncture analgesia, experiments were carried out on 4 monkeys (Macaca mulatta) during performing two tasks, the Heat Discrimination Response GO/NO-GO Task (Task Ⅰ) ...To study the role of frontal neurons in pain and acupuncture analgesia, experiments were carried out on 4 monkeys (Macaca mulatta) during performing two tasks, the Heat Discrimination Response GO/NO-GO Task (Task Ⅰ) and the Heat Delayed Discrimination GO/NO-GO Task (Task Ⅱ). After a criterion of 90% of correct performances over three successive days had been reached, activity of single neurons was recorded from the frontal cortex. Of 276 Task Ⅰ-related neurons, 211 responded to noxious and/or innocuous heat stimuli. Of 73 Task Ⅱ-related neurons, 59 responded to noxious and/or innocuous heat stimuli. During acupuncture, the nociceptive reaction time for lever release to avoid painful stimuli was increased, the percentage of correct performances was lowered, and the neuronal responses to noxious and/or innocuous stimuli were suppressed. These neurons were mainly located in a circumscribed area medial to the superior ramus of the arcuate sulcus in frontal cortex, including the prefrontal and premotor areas. It is suggested that neurons in this area may be related to the discrimination of noxious and innocuous stimuli. The snppression of the activity of these neurons during acupuncture may be involved in the whole mechanism of acupuncture to facilitate the production of analgesia.展开更多
文摘目的:考察士兵针对内群体与外群体的评价性态度,验证是否存在内隐集体自尊效应。方法:通过Go/No-go联想测验(Go/No-go Association Task,GNAT)收集被试的行为数据(即d’和反应时),考查"部队群体-积极"与"非部队群体-积极"、"部队群体-消极"以及"非部队群体-消极"之间的d’和反应时是否存在显著差异。结果:GNAT感受性指标上,任务条件的主效应显著,F(3,117)=20.15,P<0.01。反应时指标上,任务条件的主效应显著,F(3,117)=19.70,P<0.01。"非部队群体—积极"与"非部队群体—消极"之间的感受性指标与反应时上均不存在显著差异。结论:士兵群体中存在内隐集体自尊效应,内隐集体自尊并不是以贬低外群体为条件的。
文摘To study the role of frontal neurons in pain and acupuncture analgesia, experiments were carried out on 4 monkeys (Macaca mulatta) during performing two tasks, the Heat Discrimination Response GO/NO-GO Task (Task Ⅰ) and the Heat Delayed Discrimination GO/NO-GO Task (Task Ⅱ). After a criterion of 90% of correct performances over three successive days had been reached, activity of single neurons was recorded from the frontal cortex. Of 276 Task Ⅰ-related neurons, 211 responded to noxious and/or innocuous heat stimuli. Of 73 Task Ⅱ-related neurons, 59 responded to noxious and/or innocuous heat stimuli. During acupuncture, the nociceptive reaction time for lever release to avoid painful stimuli was increased, the percentage of correct performances was lowered, and the neuronal responses to noxious and/or innocuous stimuli were suppressed. These neurons were mainly located in a circumscribed area medial to the superior ramus of the arcuate sulcus in frontal cortex, including the prefrontal and premotor areas. It is suggested that neurons in this area may be related to the discrimination of noxious and innocuous stimuli. The snppression of the activity of these neurons during acupuncture may be involved in the whole mechanism of acupuncture to facilitate the production of analgesia.
