Weaker inhibition after happy faces: evidence from an attentional blink task with emotional and neutral faces

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Abstract
In two experiments using a Rapid Serial Visual Presentation (RSVP) we investigated how emotional and neutral faces (T1) modulate temporal attention for a following neutral face (T2). Typically, performance for T2 is spared when T2 immediately follows T1 (lag 1 sparing) but it is impaired when T2 is presented within 500 ms from T1 (Attentional Blink). Experiment 1 shows a shorter attentional blink following happy faces, relative to neutral and sad faces, which did not differ. Experiment 2 shows a lag 1 sparing only after happy T1s, but not after angry or neutral T1s, and a greater attentional blink following happy and angry T1-faces, compared to neutral T1-faces. Results indicate that happy faces exert different effects on temporal attention than negative (angry or sad) faces. Findings are discussed in terms of an interplay of resource depletion, due to emotional salience, and emotion-specific inhibitory mechanisms.
Funding Information
  • Ministero dell’Istruzione, dell’Università e della Ricerca (PhD studentship in Behavioural Neuroscience, RM120172B77EE5F8)
  • Università degli Studi di Roma La Sapienza

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