Semantic interference is not modality specific: Evidence from sound naming with distractor pictures

Area of Science:

• Cognitive Psychology
• Psycholinguistics
• Neuroscience

Background:

• Investigating word production mechanisms is crucial for understanding cognitive processes.
• Previous research often used visual stimuli; exploring auditory stimuli offers new insights.
• Understanding semantic interference and congruency facilitation provides clues about lexical selection.

Purpose of the Study:

• To examine the timing and locus of semantic interference and congruency facilitation in sound naming.
• To determine if sound naming tasks are suitable for chronometric studies of word production.
• To explore the generalizability of semantic interference effects beyond picture-word interference paradigms.

Main Methods:

• Three experiments involving participants naming environmental sounds presented with distractor pictures.
• Experiment 1: Measured reaction times for sound naming with congruent, semantically related, and unrelated pictures.
• Experiments 2 & 3: Employed a psychological refractory period (PRP) paradigm, combining a Task 1 (arrow decision/letter rotation) with Task 2 (sound naming) to probe processing stages.

Main Results:

• Congruent pictures facilitated sound naming, while semantically related pictures interfered, compared to unrelated pictures.
• Congruency facilitation showed underadditive effects with PRP, suggesting pre-central processing (sound identification).
• Semantic interference showed additive effects with PRP, indicating central or post-central processing (response selection or later).

Conclusions:

• Sound naming tasks are viable for chronometric investigations of word production.
• Semantic interference effects in word production are robust and not limited to specific stimulus pairings.
• Both congruency facilitation and semantic interference appear to reflect general cognitive mechanisms in word production, contributing to the debate on semantic-lexical selection.