Trying to make it work: Compositional effects in the processing of compound "nonwords".

Area of Science:

• Psycholinguistics
• Computational Linguistics
• Cognitive Science

Background:

• English speakers frequently encounter novel compounds daily.
• Effective communication relies on rapid comprehension of these new word meanings.
• The ease of semantic composition varies significantly among novel compounds.

Purpose of the Study:

• To quantitatively measure the semantic compositionality of novel English compounds.
• To test the hypothesis that processing speed is affected by the ease of semantic composition.
• To investigate automatic compositional processing in language.

Main Methods:

• Utilized a computational model based on distributional semantics.
• Conducted two large-scale studies involving timed sensibility judgments and lexical decisions.
• Collected data on hundreds of morphologically structured English nonwords.

Main Results:

• Response times were significantly predicted by the semantic contribution of word constituents.
• More compositional nonwords led to slower rejection times.
• No significant difference in compositional effects was observed between the two tasks.

Conclusions:

• Speakers automatically engage in semantic composition for morphologically structured stimuli, irrespective of task demands.
• The degree of semantic compositionality influences the processing speed of novel compounds.
• Findings have implications for research using novel words as stimuli, as compositionality affects response times.