Habituation to abrupt-onset distractors with different spatial occurrence probability.

Area of Science:

• Cognitive Psychology
• Neuroscience
• Visual Attention

Background:

• Attentional capture by abrupt visual onsets can be overcome with practice, suggesting habituation.
• Previous research on feature-singleton distractors indicates spatial selectivity in habituation and potential effects on target processing.

Purpose of the Study:

• To investigate if habituation of attentional capture by onsets is spatially selective.
• To determine if habituation depends on the frequency of distractor occurrence at specific locations.
• To examine if habituation involves spatial suppression at the distractor location and affects target processing.

Main Methods:

• Participants performed a task involving visual onsets as distractors at varying probabilities and locations.
• Measured attentional capture (onset interference) and target processing impairment.
• Analyzed effects based on distractor frequency and location.

Main Results:

• Attentional capture was significantly attenuated at locations where distractors appeared more frequently (distractor-location effect).
• Onset interference decreased across trials at both high- and low-probability distractor locations.
• Evidence regarding a "target-location effect" (impaired target processing at likely distractor locations) was inconclusive.

Conclusions:

• Habituation of attentional capture by onsets is spatially selective and influenced by distractor frequency.
• The findings support the role of statistical learning in distractor rejection and attentional habituation.
• Habituation and statistical learning are closely related, with habituation models incorporating statistical regularities of sensory input.