Development of dynamic attention: Time-based visual selection for objects in motion between 6-12 years of age.

Area of Science:

• Cognitive Psychology
• Developmental Psychology
• Neuroscience

Background:

• Children's ability to ignore irrelevant visual information develops over time.
• Preview search paradigms assess the capacity to inhibit previously seen stimuli.
• Stationary stimuli are easier to ignore than moving stimuli during visual search.

Purpose of the Study:

• To investigate the developmental trajectory of time-based visual selection in ignoring moving distractors.
• To determine the age at which children can effectively inhibit previewed moving objects.
• To explore the relationship between executive functions, specifically inhibition, and preview search efficiency.

Main Methods:

• Two experiments were conducted with 192 children aged 6, 8, and 12, and adult controls.
• A preview search task was used to assess the ability to ignore temporally old, moving distractors.
• Individual differences in executive functions, including inhibition, were measured.

Main Results:

• Six-year-olds could not ignore previewed moving distractors, while 8-year-olds showed this ability.
• Full development of ignoring moving distractors, including sustained inhibition, was observed from age 12.
• Inhibition executive functions correlated with preview search efficiency in 6-year-olds and adults.

Conclusions:

• The ability to ignore moving distractors develops in two distinct stages, later than for stationary distractors.
• Inhibitory mechanisms and individual differences play a significant role in the development of time-based visual selection.
• This research highlights a protracted developmental course for inhibiting dynamic visual information.