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[Cognitive load and listener orientation in monologue instruction]
1Universität Heidelberg.
Zeitschrift Fur Experimentelle Psychologie : Organ Der Deutschen Gesellschaft Fur Psychologie
|January 1, 1995
Summary
High mental workload impairs a speaker's ability to adapt their instructions to a listener. When cognitive load is high, speakers fail to tailor messages, suggesting a conflict between communication demands and cognitive resources.
Area of Science:
- Cognitive Psychology
- Speech Communication
- Human-Computer Interaction
Background:
- Effective communication requires adapting speech to the listener's needs.
- Cognitive factors, such as mental workload, can influence communicative behaviors.
- Understanding these influences is crucial for designing better instructional materials and communication strategies.
Purpose of the Study:
- To investigate the impact of high mental workload on the listener-adaptation of speakers giving instructions.
- To determine if cognitive load affects the ability to tailor speech content to a listener.
Main Methods:
- Forty-five subjects were assigned to low or high mental workload conditions.
- Participants instructed on assembling a model, with high workload groups lacking external aids or performing a secondary task.
- Listener-adaptation was assessed by analyzing the content and clarity of instructions.
Main Results:
- Instructions were significantly adapted to the listener only in the low workload condition.
- High workload and dual-task conditions resulted in non-adapted, content-equivalent messages.
- Speech characteristic assessments confirmed the effectiveness of the mental workload manipulation.
Conclusions:
- High mental workload significantly reduces listener-adaptation in speech.
- This suggests a cognitive limitation where communicative demands exceed available cognitive resources.
- Findings highlight the importance of managing cognitive load in communication-intensive tasks.