Delayed Match-to-Sample Early Performance Decrement in Monkeys after 60 Co Irradiation

Delayed Match-to-Sample Early Performance Decrement in Monkeys after 60 Co Irradiation

Sixteen monkeys were trained on a delayed match-to-sample task (DMTS) based on shock avoidance and irradiated with single, whole-body exposures of from 396 to 2000 rad 60 Co (midbody dose) at between 163 and 233 rad/min. Pre- to post-irradiation performance changes were assessed using a penalty-scal...

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Veröffentlicht in:Radiation research 1975-07, Vol.63 (1), p.83-96
Hauptverfasser: Bruner, A., Bogo, V., Jones, R. K.
Format: Artikel
Sprache:eng
Schlagworte:
Animals
Cobalt Radioisotopes
Discrimination Learning - radiation effects
Dosage
Dosimetry
Error rates
Gamma Rays
Irradiation
Macaca mulatta
Male
Primates
Radiation dosage
Radiation Effects
Reaction Time - radiation effects
Task complexity
Training
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Zusammenfassung:Sixteen monkeys were trained on a delayed match-to-sample task (DMTS) based on shock avoidance and irradiated with single, whole-body exposures of from 396 to 2000 rad 60 Co (midbody dose) at between 163 and 233 rad/min. Pre- to post-irradiation performance changes were assessed using a penalty-scaling measure which differentially weighted incorrect responses, response omissions, and error-omission sequences. Thirteen of the animals displayed early performance decrement, including five incapacitations, at lower doses (
ISSN:0033-7587
1938-5404
DOI:10.2307/3574309