## Abstract During operations for major hepatic trauma it may be necessary temporarily to deprive the liver of its blood supply by occlusion of the hepatic artery and portal vein. The maximum βsafe periodβ of total hepatic ischaemia in man is unknown. In the monkey the ischaemic liver βleaksβ pota
Reversal learning in the neonatal rhesus monkey
β Scribed by Dr. Robert R. Zimmermann
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- English
- Weight
- 355 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0012-1630
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Twentyβone day old and 31 day old monkeys were presented with a blackβversusβwhite discrimination reversal problem after having completed 20 days of learning on the original problem. Age at the time of reversal was not a significant factor, but reversing to the white stimulus was significantly faster than reversing to the black stimulus. This preference persisted over repeated reversals. The infant monkey shows improvement in repeated reversal learning that is very similar to the behavior of the adult rat.
π SIMILAR VOLUMES
binary solvent systems are completely defined in this manner. The calculated D, values of the particular binary solvent system can be plotted (on a large graph) against the percent volume by volume and weight by weight of the polar component of the system. It is possible, then, to select and prepar
## Abstract Four rhesus monkey pituitary glands were examined by transmission electron microscopy. Three types of intercellular junctions, desmosomes, hemidesmosomes and zonula adherensβtype junctions, were observed between adjacent granular cells, folliculoβstellate cells, and joining a folliculos