NLS Expressive Stimuli: Lexical Stress Tasks for Neurotypical Adults and Children

40 neurotypical adults and 15 typically developing children aged 5–11 years participated in novel lexical stress tasks developed by Jill C. Thorson. The dataset, last updated in April 2026, contains perceptual judgments and acoustic analyses of expressive and receptive tasks using familiar multisyllabic words. Results indicate the tasks are feasible and developmentally appropriate for assessing prosody without literacy demands.

Use Cases

• Training models to classify lexical stress patterns based on acoustic cues like duration and intensity mentioned in the description
• Developing literacy-free clinical screening tools based on the described receptive picture-identification task
• Benchmarking prosody assessment methods against the described perceptual and acoustic analysis results
• Studying typical development of lexical stress production in children aged 5–11 years as described

Strengths

• Data is based on 55 total participants (40 adults, 15 children), providing a foundation for analysis
• Includes both perceptual judgments and acoustic analyses (duration, intensity, pitch) for expressive productions
• Tasks use familiar words embedded in meaningful contexts, which the description suggests supports ecological validity

Limitations

• Row count is unknown, which may limit suitability assessment
• Column-level documentation is absent; field semantics must be inferred after download
• Data may reflect geographic and linguistic bias inherent to the study of mainstream US English speakers

Provenance

Source

Jill C. Thorson via figshare

Collection Method

Experimental data from novel lexical stress tasks, with responses judged perceptually and analyzed acoustically

Freshness

Last updated 2026-04-29 17:50:06; freshness should be verified

Geography

Likely United States, given the participant group speaks mainstream US English