Associative and Identity Words Promote the Speed of Visual Categorization: A Hierarchical Drift Diffusion Account

Area of Science:

• Cognitive Psychology
• Neuroscience
• Psycholinguistics

Background:

• Verbal stimuli can influence visual information processing, leading to behavioral facilitation or interference.
• Understanding the precise stage at which verbal effects impact behavior is crucial for cognitive models.

Purpose of the Study:

• To investigate the stage of verbal interference/facilitation (response execution vs. target processing) in a response priming paradigm.
• To differentiate between semantic and Stroop-like effects using identity and associative primes.
• To analyze the cognitive mechanisms underlying word-picture interactions.

Main Methods:

• Participants performed a gender categorization task on face stimuli preceded by congruent, incongruent, or neutral gender words.
• Reaction times and response accuracy were analyzed using the drift diffusion model.
• Identity and associative primes were employed to probe semantic and Stroop-like effects.

Main Results:

• Regardless of prime type, words consistently produced a facilitatory effect on behavior.
• This facilitation was found to map onto visual attention and response execution processes.
• The drift diffusion model provided insights into the temporal dynamics of facilitation and interference.

Conclusions:

• Verbal stimuli exert a facilitatory influence on visual processing and response execution.
• The observed effects are primarily linked to attentional mechanisms and the final stages of response preparation.
• The findings contribute to a deeper understanding of how language interacts with visual perception and action control.