An electrocortical comparison of executed and rejected shots in skilled marksmen
Autor: | Christopher M. Janelle, Ross J. Apparies, Charles H. Hillman, Bradley D. Hatfield |
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Rok vydání: | 2000 |
Předmět: |
Adult
Male Firearms Speech recognition Shot (filmmaking) Poison control Electroencephalography Task (project management) Developmental psychology medicine Humans Beta Rhythm Attention Dominance Cerebral Cerebral Cortex medicine.diagnostic_test Fourier Analysis General Neuroscience Motor control Signal Processing Computer-Assisted Alpha Rhythm Neuropsychology and Physiological Psychology Eeg activity Laterality Female Psychology Sports |
Zdroj: | Biological psychology. 52(1) |
ISSN: | 0301-0511 |
Popis: | Electroencephalographic (EEG) activity during the preshot period was investigated in seven skilled marksmen. Specifically, alpha and beta spectral power were obtained for the 4-s period prior to the execution or rejection of shots. Rejected shots were defined as those that resulted in the marksman's self-initiated decision to withdraw their rifle from the target rather than execute the shot. EEG activity during the preparatory period was contrasted between the executed and rejected shots to better understand the involved attentional processes associated with the preshot state. Results for rejected compared with executed shots revealed a progressive increase in alpha and beta power for rejected compared with executed shots, which increased across the preparatory period. Furthermore, increased spectral power was found in the left compared with the right hemisphere for both executed and rejected shots, and in the different regions of the scalp. Therefore, the decision to reject a shot seems to be characterized by inappropriate allocation of the neural resources associated with task execution. |
Databáze: | OpenAIRE |
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