Accession Number : AD0635661

Title :   BEHAVIORAL EFFECTS OF RADIOLESIONS IN THE BRAIN OF THE PIGEON (COLUMBA LIVIA). APPENDIX I.

Descriptive Note : Final technical rept.

Corporate Author : STOCKHOLM UNIV (SWEDEN) DEPT OF ZOOLOGY

Personal Author(s) : Fabricius, Eric

Report Date : 25 JUN 1963

Pagination or Media Count : 14

Abstract : Brain lesions produced by local irradiation with high energy protons were used to study the role of the cerebral hemispheres in the control of behavior in pigeons. Complete intersection of the cerebral peduncles resulted in a total loss of spontaneous feeding and drinking, escape responses and social behavior. Balancing movements and an advanced visual control of locomotion persisted, including the ability of avoiding obstacles during flight and of precision landing. Transsection of the cerebral peduncles except part of the tractus occipito-mesencephalicus gave similar symptoms, except that escape responses persisted for a longer period. In birds with more rostral lesions, sparing the posterior portion of the lateral forebrain bundle as well as the tractus occipito-mesencephalicus, the ability of spontaneous eating and drinking persisted, as well as the escape responses, and even social behavior was observed. Transsection of the median forebrain bundle (tractus septo-mesencephalicus) produced no obvious behavioral changes, except for some very slight abnormalities in copulatory behavior in one bird and a slight impairment of retention in learning tests in another individual. However, these effects could as well be described to damage to some paleostriatal tissue included in the lesions. (Author)

Descriptors :   (*PIGEONS, BEHAVIOR), (*BEHAVIOR, RADIATION EFFECTS), (*RADIATION EFFECTS, CENTRAL NERVOUS SYSTEM), RADIATION INJURIES, BRAIN, RADIATION DOSAGE, NERVOUS SYSTEM, PHYSIOLOGY, REPRODUCTION(PHYSIOLOGY), INGESTION(PHYSIOLOGY), GANGLIA, LEARNING, FLIGHT, MOTION, SWEDEN

Subject Categories : Anatomy and Physiology
      Radiobiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE