Easey Kayleigh E, Catling Jon C, Kent Christopher, Crouch Coral, Jackson Sam, Munafò Marcus R, Attwood Angela S
MRC Integrative Epidemiology UnitUniversity of Bristol, Bristol, UK.
UK Centre for Tobacco and Alcohol Studies, University of Bristol, Bristol, UK.
Psychon Bull Rev. 2018 Apr;25(2):732-738. doi: 10.3758/s13423-017-1413-6.
We used the 7.5% carbon dioxide model of anxiety induction to investigate the effects of state anxiety on simple information processing. In both high- and low-anxious states, participants (n = 36) completed an auditory-visual matching task and a visual binary categorization task. The stimuli were either degraded or clear, so as to investigate whether the effects of anxiety are greater when signal clarity is compromised. Accuracy in the matching task was lower during CO inhalation and for degraded stimuli. In the categorization task, response times and indecision (measured using mouse trajectories) were greater during CO inhalation and for degraded stimuli. For most measures, we found no evidence of Gas × Clarity interactions. These data indicate that state anxiety negatively impacts simple information processing and do not support claims that anxiety may benefit performance in low-cognitively-demanding tasks. These findings have important implications for understanding the impact of state anxiety in real-world situations.
我们使用7.5%二氧化碳诱发焦虑模型来研究状态焦虑对简单信息处理的影响。在高焦虑和低焦虑状态下，参与者（n = 36）都完成了视听匹配任务和视觉二元分类任务。刺激物分为模糊或清晰两种，以研究当信号清晰度受损时焦虑的影响是否更大。在吸入二氧化碳期间以及对于模糊刺激物，匹配任务的准确性较低。在分类任务中，吸入二氧化碳期间以及对于模糊刺激物，反应时间和犹豫不决（使用鼠标轨迹测量）的情况更明显。对于大多数测量指标，我们没有发现气体×清晰度交互作用的证据。这些数据表明状态焦虑对简单信息处理有负面影响，并不支持焦虑可能有益于低认知需求任务表现的说法。这些发现对于理解现实世界中状态焦虑的影响具有重要意义。
