The Hippocampal Complex of Food-Storing Birds
نویسندگان
چکیده
منابع مشابه
Hippocampal specialization of food-storing birds.
In a study of 52 individuals belonging to 35 species or subspecies of passerine birds it was shown that the volume of the hippocampal complex relative to brain and body size is significantly larger in species that store food than in species that do not. Retrieval of stored food relies on an accurate and long-lasting spatial memory, and hippocampal damage disrupts memory for storage sites. The r...
متن کاملSeasonal hippocampal plasticity in food-storing birds.
Both food-storing behaviour and the hippocampus change annually in food-storing birds. Food storing increases substantially in autumn and winter in chickadees and tits, jays and nutcrackers and nuthatches. The total size of the chickadee hippocampus increases in autumn and winter as does the rate of hippocampal neurogenesis. The hippocampus is necessary for accurate cache retrieval in food-stor...
متن کاملGreater hippocampal neuronal recruitment in food-storing than in non-food-storing birds.
Previous research has shown heightened recruitment of new neurons to the chickadee hippocampus in the fall. The present study was conducted to determine whether heightened fall recruitment is associated with the seasonal onset of food-storing by comparing neurogenesis in chickadees and a non-food-storing species, the house sparrow. Chickadees and house sparrows were captured in the wild in fall...
متن کاملThe seasonal hippocampus of food-storing birds.
Food storing is seasonal in birds like chickadees, nuthatches and jays, occurring at high levels in fall and winter and low levels in spring and summer. Memory for cache sites is hippocampus dependent in chickadees and both the recruitment of new neurons into the hippocampus and the total size of the hippocampus change seasonally. Unlike seasonal change in the vocal control nuclei of songbirds,...
متن کاملThe hippocampus of food-storing birds.
when we examined sections from our control birds we saw something very striking. The hippocampus was clearly much larger in chickadees than shown in the atlas. Where the canary atlas showed a smooth curve as the dorsal surface of the brain travelled medially and descended between the hemispheres, the chickadees had a large bump. Previous work by many researchers on the songbird brain had prepar...
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ژورنال
عنوان ژورنال: Brain, Behavior and Evolution
سال: 1989
ISSN: 0006-8977,1421-9743
DOI: 10.1159/000116516