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Light at night affects hippocampal and nidopallial cytoarchitecture: Implication for impairment of brain function in diurnal corvids
Nighttime Light Changes Cell Structure in Memory and Thinking Areas, Linked to Brain Problems in Day-Active Crows
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Abstract
Light at night (LAN) is associated with a significant decrease in soma size of neurons in the hippocampus and lateral caudal nidopallium of Indian house crows.
- Exposure to constant light or dim light at night resulted in reduced soma size of neurons, indicating decreased neuronal plasticity.
- Neuronal density in both the hippocampus and lateral caudal nidopallium remained unchanged despite the reduced soma size.
- A decrease in the number of glial cells was observed, leading to a lower glia-neuron ratio that positively correlated with soma size.
- These findings highlight the potential negative effects of LAN on brain cytoarchitecture in a diurnal species.
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