在外围视觉中,一致的元认知效率和可变的响应偏差在外围视觉中
Joseph Pruitt1,2,3, J D Knotts4,5, Brian Odegaard1,6,7
1University of Florida, Gainesville, FL, USA.
Journal of vision
|August 7, 2024
概括
视觉注意力和刺激位置影响视觉外围的感知和自我意识. 随着距离的推移,元认知灵敏度下降,但效率保持稳定,揭示了对外围视觉偏差的洞察力.
科学领域:
- 认知神经科学 认知神经科学
- 视觉感知 视觉感知 视觉感知
- 心理物理学的精神物理.
背景情况:
- 感知和元认知能力在视觉外围有所不同.
- 诸如注意点和刺激位置等因素会影响这些能力.
研究的目的:
- 为了研究视觉注意力和视觉外围的异常性之间的关系.
- 量化感知灵敏度,元认知灵敏度和视野中的响应偏差.
主要方法:
- 采用了两种替代性强制选择 (2AFC) 检测任务.
- 参与者在八个外围位置 (±10°至40°) 识别出具有有效或无效注意力线索的信号.
- 估计了感知灵敏度 (d'a),元认知灵敏度 (meta-d'a) 和响应偏差 (c'a).
主要成果:
- 感知灵敏度随着异常性而下降,并且随着有效的注意力线索而改善.
- 响应偏差在40°离心率转向保守.
- 随着异常和无效的线索,元认知灵敏度下降,但元认知效率没有受到影响.
结论:
- 观察者对整个视野中的性能变化具有超认知洞察力.
- 外围视觉检测偏差是可变的,取决于刺激位置.
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