Social stress increases [14C]2-deoxyglucose incorporation in three rostral forebrain areas of the young chick.
The 2-deoxyglucose method and EEG-recordings were used to compare forebrain activities between socially reared chicks, one remaining in the group the other being separated with preserved visual and auditory contact. During 30% of the test period, separated chicks produced distress calls and showed a typical EEG arousal pattern. The 9 Hz band of the EEG spectrum and the duration of distress calling were found to be significantly different from grouped chicks. Increased 2-deoxyglucose incorporation were found in 3 rostral forebrain areas of separated chicks, namely the hyperstriatum accessorium/hyperstriatum dorsale, the lateral neostriatum/hyperstriatum ventrale and the medial neostriatum/hyperstriatum ventrale. These same areas were previously reported to increase metabolic activity in imprinted Guinea fowl chicks, when they heared the imprinting stimulus during the 2-deoxyglucose experiment. It is argued that high metabolic activity in these areas reflects arousal and attention to relevant auditory or visual stimuli.
D000818:Animals; D001143:Arousal / Q000502:physiology; D001288:Attention / Q000502:physiology; D001921:Brain / Q000378:metabolism*; D001931:Brain Mapping; D002645:Chickens / Q000378:metabolism*; D003847:Deoxyglucose / Q000378:metabolism; D004569:Electroencephalography; D005260:Female; D005947:Glucose / Q000378:metabolism*; D008297:Male; D012934:Social Isolation; D013315:Stress, Psychological / Q000378:metabolism*; D014828:Vocalization, Animal / Q000502:physiology
D003847:Deoxyglucose; D005947:Glucose