Enhanced visual awareness for morality and pajamas? Perception vs. memory in 'top-down' effects

Area of Science:

• Cognitive Psychology
• Neuroscience
• Visual Perception

Background:

• Research suggests higher-level cognitive factors (e.g., meaning, morality) influence visual perception.
• Studies report that morally relevant stimuli
• pop out
• and are easier to identify.

Purpose of the Study:

• To investigate whether alleged top-down effects on perception are truly perceptual or memory-based.
• To differentiate effects on visual perception versus visual recognition.

Main Methods:

• Three experiments using brief presentation methods.
• Comparing "pop-out" effects for morally relevant words versus superficial categories (e.g., fashion).

Main Results:

• Identical "pop-out" effects were observed for both morally relevant and superficial word categories.
• These effects were replicated using the same methods.

Conclusions:

• Alleged top-down effects on perception are likely due to "back-end" memory processes (semantic priming).
• These findings have no implications for whether higher-level factors influence perception itself.
• Distinguishing perception from memory is critical for interpreting top-down effects.