NEGLIGIBLE EFFECTS OF X-RADIATION OF THE HEAD UPON HEARING IN THE RAT

Journal Article · Sun Jan 01 04:00:00 EST 1961 · J. Auditory Research

OSTI ID:4075127

Murphy, J E; Harris, J D

Groups of white rats were trained to press a lever for food during the periods when an otherwise constant tone of 4 kc was modulated in a sinusoidal fashion either 4 db in intensity or 4% in frequency. Other rats were trained to respond in a shuttlebox to the onset of modulation. At a stage in his acquisition curve, an individual rat was given a single dose of 200 r directed toward the rear half of the skull. No effect on the leanning curves could be observed, whereupon the dose was changed to 500 r. Rats given this larger dose were able to maintain both lever-pressing and shuttle-box habits, though a few days after x radiation at 500 r the shuttlebox habit showed some deterioration for both types of modulation. A dose of 500 r had no effect on the audiogram, as measured by the Preyer pinna reflex, or upon the 1 mu nu cochleogram, as compared with the average normal untreated rat. If a deterioration occurred in the shuttlebox situation the effect was not primarily on the peripheral sence organ. (auth)

• Research Organization: C. W. Shilling Auditory Research Center, Inc., Groton, Conn.
• NSA Number: NSA-15-012749
• OSTI ID: 4075127
• Report Number(s): NYO-9013
• Journal Information: J. Auditory Research, Journal Name: J. Auditory Research Vol. Vol: 1
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BEHAVIOR
BIOLOGY AND MEDICINE
BRAIN
NERVOUS SYSTEM
RADIATION EFFECTS
RATS
X RADIATION