Abstract：
:One-day-old chicks were exposed for 60 min to either an imprinting stimulus or a dark-box. They were killed at 0, 1, 6 or 12 h after the end of this treatment, and the activities of acetylcholinesterase (AChE) and choline acetyltransferase (ChAc) assayed in the forebrain roof, forebrain base and midbrain. The activity of AChE increased by 11% in the roof of stimulus-exposed birds 1 h after exposure and in base (by 13%) and midbrain (by 8%) 6 h after exposure. At 12 h the only difference was a lowered AChE (14%) activity in midbrain of stimulus-exposed animals. By contrast only one difference was found in ChAc activity between the two types of birds: an elevation of 10% immediately after the end of treatment (0 h) in the midbrain of the stimulus-exposed birds.
journal_name
Brain Resjournal_title
Brain researchauthors
Haywood J,Hambley J,Rose Sdoi
10.1016/0006-8993(75)90271-1subject
Has Abstractpub_date
1975-07-11 00:00:00pages
219-25issue
2eissn
0006-8993issn
1872-6240pii
0006-8993(75)90271-1journal_volume
92pub_type
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