Feature overlap slows lexical selection: evidence from the picture-word interference paradigm

Area of Science:

• Cognitive Psychology
• Psycholinguistics
• Neuroscience of Language

Background:

• Investigating lexical selection in spoken word production is crucial for understanding language.
• Previous research using the picture-word interference (PWI) paradigm yielded mixed results regarding semantic interference and facilitation.
• The role of conceptual feature overlap in lexical selection remains debated.

Purpose of the Study:

• To re-examine the influence of categorically related words on picture naming latencies.
• To test competitive versus noncompetitive accounts of lexical selection.
• To investigate how conceptual feature overlap affects naming latencies with category coordinate distractors.

Main Methods:

• Utilized the picture-word interference (PWI) paradigm.
• Employed category coordinate distractors with varying degrees of semantic relatedness to target pictures.
• Used materials based on feature production norms to control for semantic distance.

Main Results:

• Failed to replicate prior findings of semantic facilitation for close distractors.
• Observed reliably larger semantic interference effects for closer category coordinates compared to farther ones.
• Found that semantic interference correlates with the degree of conceptual feature overlap between target and distractor words.

Conclusions:

• Semantic interference in the PWI paradigm is greater for semantically close than far category coordinates.
• Findings support competitive lexical selection models of speech production.
• The extent of conceptual feature overlap significantly influences interference effects in word production.