Selective processing of masked and unmasked verbal threat material in anxiety: Influence of an immediate acute stressor
Selective processing of masked and unmasked verbal threat material in anxiety: Influence of an immediate acute stressor
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DOI：
10.1080/02699930500375761
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发表时间：
2006-09-01
影响因子：
2.6
通讯作者：
Lipp, Ottmar V.
中科院分区：
文献类型：
--
作者：
Edwards, Mark S.;Burt, Jennifer S.;Lipp, Ottmar V.
注意偏见的威胁进行了调查，使用计算机化版本的情绪Stroop任务。本研究采用问卷调查分数的基础上分配到高特质焦虑（HTA; n = 32）或低特质焦虑（LTA; n = 32）组的学生样本，检查状态和特质焦虑的影响，并通过电击的威胁在参与者中操纵状态焦虑。不相关的威胁性词语（例如，癌症、危险）或与休克的威胁有关（例如，电击，电击）被呈现给意识内和意识外的参与者。在后一种情况下，使用后向掩蔽程序来防止意识，并为每个参与者单独设置目标和掩蔽之间的暴露阈值。对于揭盲试验的HTA组表现出显着的干扰，在颜色命名的所有威胁词相对于控制词时，在休克的威胁下进行，但不是在休克安全条件。对于掩蔽试验，尽管能够识别项目的词汇状态的机会表现，HTA参与者表现出便利的颜色命名的所有威胁词相对于控制项目时，在休克的威胁下进行，但这种效果是不明显的休克安全条件。无论是价格的项目，也没有休克的威胁，影响颜色命名lavelet在任何曝光模式的LTA组。
Attentional biases for threat were investigated using a computerised version of the emotional Stroop task. The study examined the influence of state and trait anxiety by employing a student sample assigned to high trait anxious (HTA; n = 32) or low trait anxious (LTA; n = 32) groups on the basis of questionnaire scores, and state anxiety was manipulated within participants through the threat of electric shock. Threatening words that were either unrelated (e.g., cancer, danger) or related to the threat of shock (e.g., electrocute, shock) were presented to participants both within and outside of awareness. In the latter condition a backward masking procedure was used to prevent awareness and exposure thresholds between the target and mask were individually set for each participant. For unmasked trials the HTA group showed significant interference in colour naming for all threat words relative to control words when performing under the threat of shock, but not in the shock safe condition. For the masked trials, despite chance performance in being able to identify the lexical status of the items, HTA participants showed facilitated colour naming for all threat words relative to control items when performing under threat of shock, but this effect was not evident in the shock safe condition. Neither valence of the items nor the threat of shock influenced colour naming latencies in either exposure mode for the LTA group.