Flanker effects with faces may depend on perceptual as well as emotional differences

Area of Science:

• Cognitive Psychology
• Visual Perception
• Social Cognition

Background:

• Previous research suggests threatening or negative faces capture attention more readily than positive faces.
• Evidence from visual search, spatial cuing, and flanker tasks has been interpreted as supporting this attention bias.
• Alternative explanations, such as perceptual differences, have not been fully explored.

Purpose of the Study:

• To investigate whether negative faces inherently capture attention more than positive faces.
• To examine the role of perceptual differences versus emotional content in attention asymmetry.
• To test the flanker task paradigm for its ability to distinguish between these explanations.

Main Methods:

• Replication of previous flanker task results showing greater interference for positive faces flanked by negative faces compared to the reverse.
• Experimental manipulation to assess the necessity of face perception for the observed flanker-effect asymmetry.
• Inclusion of non-emotional stimuli to determine if the asymmetry extends beyond affective faces.

Main Results:

• Previous findings regarding flanker task interference asymmetry were replicated.
• The flanker-effect asymmetry was observed even when face perception was not required.
• The asymmetry was also present with non-emotional stimuli, suggesting a perceptual basis.

Conclusions:

• The flanker-effect asymmetry observed with affective faces is not unambiguously attributable to emotional differences.
• Perceptual differences between stimuli likely account for the observed attention asymmetry.
• The study challenges the notion that negative faces possess a special ability to capture attention.