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Practical Methodology of Cognitive Tasks Within a Navigational Assessment
Published on: June 1, 2015
Speech interactions with linguistic, cognitive, and visuomotor tasks
Christopher Dromey1, Emily Bates
1Brigham Young University, Provo, UT 80602, USA. dromey@byu.edu
Summary
Investigating speech motor control, this study found that concurrent tasks impact lip movements and vocal intensity. These findings highlight the interplay between speech production, language formulation, and cognitive demands.
Area of Science:
- Speech motor control
- Cognitive neuroscience
- Linguistics
Background:
- Understanding the complex interplay between speech production and cognitive/motor tasks is crucial.
- Previous research has explored dual-tasking effects on speech, but specific impacts on lip kinematics require further investigation.
Purpose of the Study:
- To examine lip movement variability during speech under various concurrent task conditions.
- To compare performance on non-speech tasks when performed alone versus concurrently with speech.
- To investigate the influence of linguistic and motor challenges on speech production and linguistic accuracy.
Main Methods:
- 20 young adults participated in repetitive speaking tasks.
- Concurrent tasks included linguistic, cognitive, and visuomotor challenges.
- Lip displacement, speech rate, vocal intensity, and linguistic performance were measured.
Main Results:
- Linguistic challenges increased lip displacement variability; motor challenges led to faster speech with reduced displacement.
- Vocal intensity increased across all concurrent tasks, indicating heightened effort.
- Linguistic performance scores decreased during concurrent syntactic challenges.
Conclusions:
- Different attentional resources are engaged for linguistic versus visuomotor tasks.
- Speech motor activity influences and is influenced by linguistic performance.
- Clinicians should consider interactions between language, cognition, and speech motor control in disordered populations.
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