Cardiac-somatic coupling during the foreperiod in a simple reaction-time task
| Autor: | C. H. M. Brunia, S. A. V. M. Haagh |
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| Přispěvatelé: | TS Social and Behavioral Sciences |
| Rok vydání: | 1984 |
| Předmět: |
Agonist
Adult Male medicine.medical_specialty Adolescent medicine.drug_class Experimental and Cognitive Psychology Electromyography Arousal Task (project management) Physical medicine and rehabilitation Arts and Humanities (miscellaneous) Heart Rate Heart rate Developmental and Educational Psychology medicine Peroneus longus Reaction Time Humans Communication medicine.diagnostic_test business.industry Eye movement General Medicine musculoskeletal system body regions Coupling (electronics) Set Psychology Female Psychology business |
| Zdroj: | Psychological Research = Psychologische Forschung: An international journal of perception, learning and communication, 46(1-2), 3-13. Springer Verlag |
| ISSN: | 0340-0727 |
| Popis: | The cardiac-somatic coupling hypothesis predicts a phasic decrease of general somatic behavior concomitant with a phasic heart-rate deceleration. This hypothesis was investigated during a constant 4 s foreperiod (FP) in a simple auditory reaction-time task. Intertrial interval duration was variable (mean 15.5 s; range 11–20 s). The response was a plantar flexion of the right foot. Besides ECG and EOG, surface EMG of nine striate muscles varying in relevance to response execution was recorded. In agreement with the hypothesis, heart rate, eye movements, and m. mylohyoideus EMG were decreased at the end of the FP. An increase in the EMG of the agonist m. soleus, antagonist m. tibialis anterior, m. peroneus longus, and m. trapezius was found during the FP. The activity in all other response-irrelevant muscles did not significantly differ from baseline. It was concluded that the results are at variance with the cardiac-somatic coupling hypothesis. Changes in surface EMG are discussed in terms of motor preparation. |
| Databáze: | OpenAIRE |
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