Do food-caching chickadees grow their hippocampus every autumn when they need to cache food and then shrink it for the rest of the year?
Do food-caching chickadees grow their hippocampus every autumn when they need to cache food and then shrink it for the rest of the year?
复制标题
每年秋天,当山雀需要储存食物时,它们的海马体都会生长,然后在一年中的剩余时间里缩小它的海马体吗?
DOI:
10.1016/j.anbehav.2022.06.006
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发表时间:
2022
期刊:
影响因子:
2.5
通讯作者:
Pravosudov, Vladimir V.
中科院分区:
文献类型:
--
作者:
Pravosudov, Vladimir V.
Understanding brain plasticity as it relates to environmental variation is one of the big issues in behavioural neuroscience and neuroecology. It is common, especially in popular literature to report that food-caching birds such as chickadees expand their hippocampus volume, which is involved in spatial learning and memory, by adding more neurons during the time when they are intensely caching food (autumn) and then reduce the hippocampus size and the number of hippocampal neurons during the rest of the year when they either do not cache food (summer) or cache much less (winter, spring). If true, this would be a highly adaptive mechanism allowing food-caching birds to change their memory capacity associated with seasonal variation in memories of food caches.It is unfortunate that this claim is so persistent when the hard evidence is not that simple e while there are some data showing that food-caching black-capped chickadees, Poecile atricapillus, and willow tits, Poecile montanus, sampled during the month of peak caching indeed had larger hippocampus and more hippocampal neurons compared to other individuals sacrificed during other periods (Lange et al., 2022; Smulders, Casto et al., 2000; Smulders et al., 1995; Smulders, Shiflett et al., 2000), there is a large body
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影响因子:
2.6
作者:
Croston, Rebecca;Branch, Carrie L.;Pravosudov, Vladimir V.
通讯作者:
Pravosudov, Vladimir V.
DOI:
10.1002/neu.480270103
发表时间:
1995
期刊:
Journal of neurobiology
影响因子:
--
作者:
T. Smulders;A. Sasson;T. Devoogd
通讯作者:
T. Devoogd
影响因子:
1.8
作者:
Phillmore,Leslie S.;Aitken,Sean D. T.;Parks,Broderick M. B.
通讯作者:
Parks,Broderick M. B.
影响因子:
--
作者:
V. Pravosudov;T. Roth;Lara D. LaDage;C. Freas
通讯作者:
V. Pravosudov;T. Roth;Lara D. LaDage;C. Freas
影响因子:
1.9
作者:
Hoshooley, JS;Sherry, DF
通讯作者:
Sherry, DF