THE BEHAVIOR OF 100 DAY OLD MALE RATS RESULTING FROM FETAL X-IRRADIATION

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Atompraxis (West Germany) Incorporated in Kerntechnik

OSTI ID:4748409

Kaplan, S J; Rugh, R; White, R K

Eighty-four male 100-day-old rats were studied for maze learning efficiency following exposure to various doses of x rays on various gestation days. In one experiment it was shown that 50 r delivered on gestation days 4.5, 6.5, 7.5, ing ability. On the other hand, in a second experiment it was demonstrated that rats given as much as 150 r on the 8.5 gestation day showed no significant differences in learning ability. It was concluded that, in terms of functional impairment following radiation, there is a curvilinear relationship between sensitivity to damage and chronological development. It is postulated that damage occurs increasingly during the first seven days in utero, diminishes on the eighth and ninth days and increases again from the twelfth day through birth. It is emphasized that damage'' implies damage of tissues essential to the specific act of learning the panticular maze under study. (auth)

• Research Organization: Texas Technological Coll., Lubbock, and Columbia Univ., New York
• NSA Number: NSA-17-015655
• OSTI ID: 4748409
• Journal Information: Atompraxis (West Germany) Incorporated in Kerntechnik, Journal Name: Atompraxis (West Germany) Incorporated in Kerntechnik Vol. Vol: 9; ISSN ATPXA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AGE
BEHAVIOR
BIOLOGY AND MEDICINE
BRAIN
FETUSES
LEARNING
NERVOUS SYSTEM
PREGNANCY
RADIATION DOSES
RADIATION INJURIES
RADIOSENSITIVITY
RATS
VARIATIONS
X RADIATION