Unintentionality of affective attention across visual processing stages
Andero Uusberg1, Helen Uibo1, Kairi Kreegipuu1
1Institute of Psychology, University of Tartu Tartu, Estonia.
Frontiers in Psychology
|January 15, 2014
Summary
Affective attention prioritizes important stimuli automatically. Emotional processing intention influences later brain responses (P3, SW), but not initial visual selection (EPN), indicating a shift from unintentional to intentional processing.
Area of Science:
- Cognitive Neuroscience
- Psychology
- Neuroscience
Background:
- Affective attention automatically prioritizes motivationally significant stimuli via bottom-up processing.
- The automaticity of affective attention, particularly its dependence on intentional emotional processing, remains incompletely understood.
Purpose of the Study:
- To investigate the automaticity of affective attention by examining its dependence on the intention to process emotional meaning.
- To clarify the temporal dynamics of affective attention and its distinct processing stages.
Main Methods:
- Participants evaluated affective images with varying arousal and intentionality, using polytomous decisions.
- Event-related potentials, including early posterior negativity (EPN), P3, and slow wave (SW), were analyzed to assess temporal dynamics.
Main Results:
- The intention to process emotional meaning did not affect the EPN (175–300 ms).
- Intentionality had an additive effect on P3 (300–500 ms) and an interactive effect on SW (500–1500 ms).
- Distinct electrophysiological components (EPN, P3, SW) reflected different stages of motivational significance encoding.
Conclusions:
- Affective attention is unintentional during early visual processing (EPN) but becomes partially intentional during later stages (P3, SW).
- Top-down signals complement and modulate bottom-up stimulus prioritization in later processing stages.
- Findings align with two-stage visual perception models, associating EPN with initial relevance detection and P3/SW with affective stimulus consolidation.
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