Subliminal Emotional Words Impact Syntactic Processing: Evidence from Performance and Event-Related Brain Potentials

Area of Science:

• Cognitive Neuroscience
• Psycholinguistics
• Neuroscience

Background:

• Emotional information influences cognitive processes, including syntactic processing.
• Subliminal emotional stimuli can affect cognitive functions.
• The impact of unconscious emotional information on syntactic processing remains largely unexplored.

Purpose of the Study:

• To investigate whether unconscious emotional information affects syntactic processing.
• To examine the neural correlates of processing morphosyntactic violations under different emotional conditions.

Main Methods:

• Event-Related brain Potential (ERP) study design.
• Inclusion of positive, neutral, and negative subliminal adjectives within neutral sentences.
• Presentation of sentences with correct or morphosyntactic violations (number/gender disagreements).

Main Results:

• Emotional adjectives modulated the processing of morphosyntactic anomalies.
• Negative subliminal adjectives reduced anterior negativity and advanced P600 onset.
• Positive subliminal adjectives elicited an N400 component for violations, suggesting heuristic processing.

Conclusions:

• Unconscious emotional stimuli significantly impact conscious syntactic processing.
• Emotional valence influences the neural mechanisms underlying grammatical error detection.
• Emotional information can alter cognitive resource allocation during language comprehension.