Misaligned and Polarity-Reversed Faces Determine Face-specific Capacity Limits

Frontiers in Psychology

Volker Thoma¹ 

关键词: attention;    face perception;    perceptual load;    capacity limits;    flanker paradigm;    holistic processing;    polarity reversal;   

DOI  :  10.3389/fpsyg.2016.01470

学科分类：心理学（综合）

来源: Frontiers

【 摘 要 】

Previous research using flanker paradigms suggests that peripheral distracter faces are automatically processed when participants have to classify a single central familiar target face. These distracter interference effects disappear when the central task contains additional anonymous (non-target) faces that load the search for the face target, but not when the central task contains additional non-face stimuli, suggesting there are face-specific capacity limits in visual processing. Here we tested whether manipulating the format of non-target faces in the search task affected face-specific capacity limits. Experiment 1 replicated earlier findings that a distracter face is processed even in high load conditions when participants looked for a target name of a famous person among additional names (non-targets) in a central search array. Two further experiments show that when targets and non-targets were faces (instead of names), however, distracter interference was eliminated under high load—adding non-target faces to the search array exhausted processing capacity for peripheral faces. The novel finding was that replacing non-target faces with images that consisted of two horizontally misaligned face-parts reduced distracter processing. Similar results were found when the polarity of a non-target face image was reversed. These results indicate that face-specific capacity limits are not determined by the configural properties of face processing, but by face parts.

【 授权许可】

CC BY