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Scene semantics involuntarily guide attention during visual search.

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Attention during scene viewing is involuntarily guided by high-level semantics, not just low-level image features. Even in a task unrelated to scene content, semantic information captured attention from the first glance.

Keywords:
AttentionSalienceScene perceptionSemanticsVisual search

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Understanding how attention is allocated during scene perception is crucial for cognitive science.
  • Previous research indicated a role for semantic features in guiding overt attention in scenes.
  • The involuntary nature of semantic guidance remained an open question.

Purpose of the Study:

  • To investigate whether the attentional priority given to meaningful scene regions is involuntary.
  • To compare the influence of semantic features versus image salience on attention during scene viewing.
  • To determine if semantic guidance persists even when the task is independent of scene content.

Main Methods:

  • Participants performed a visual search task for letter targets superimposed on scenes.
  • Target locations were independent of both scene semantics and image salience.
  • Eye movements were recorded to analyze the distribution of overt attention.

Main Results:

  • Semantic features explained significantly more variance in attention distribution than image salience.
  • This semantic bias was evident from the initial fixation and increased over time.
  • Image salience was suppressed in favor of task goals, but semantic features were not.

Conclusions:

  • Overt attention in scenes is involuntarily guided by high-level semantic information.
  • Semantic processing plays a dominant and automatic role in directing visual attention.
  • Scene semantics exert a powerful, non-task-dependent influence on visual exploration.