Emotional distractor images disrupt target processing in a graded manner

Area of Science:

• Cognitive Psychology
• Neuroscience
• Psychology

Background:

• The emotional attentional blink (EAB), or emotion-induced blindness, describes impaired target discrimination following an emotional distractor.
• Previous research often characterized EAB as a complete loss of target information due to attentional capture.
• It remains unclear if EAB's impact is discrete or graded.

Purpose of the Study:

• To investigate whether emotional distractors disrupt target processing in a continuous or all-or-none fashion.
• To examine the effects of emotional distractors on reaction time (RT), target-vividness ratings, and accuracy.

Main Methods:

• Participants viewed rapid sequences of landscape images with a central target.
• They reported the orientation of a rotated target (± 90°) as quickly and accurately as possible.
• Emotional distractors were presented at varying temporal lags relative to the target.

Main Results:

• A significant impairment in target discrimination was observed when an emotional distractor preceded the target (Lag 1).
• A moderate impairment occurred when the target preceded the emotional distractor (Lag -1).
• Decreased accuracy was accompanied by increased RT and lower subjective target vividness, even for detected targets, indicating a graded effect.

Conclusions:

• Emotional distractors impact target processing in a lag-dependent, graded manner, not a discrete all-or-none fashion.
• Findings support an interactive race model of stimulus representation competition.
• Results highlight the continuous nature of attentional capture by emotional stimuli.