The absence of pineal-derived melatonin may have further consequences, not only for the organization of the circadian system, but also for the susceptibility to neurodegenerative processes, especially because not all the brain areas are able to produce melatonin.
A possible explanation for the inter-species differences, if string pulling is based on operant conditioning, is that bird species with larger associative brain areas are able to integrate information between perceptual and motor pathways quicker than species with smaller associative brain areas.
Supporting the relationship between anxiety-like behavior and c-Fos response in particular brain areas, we were able to demonstrate a significant correlation between distal arm entries and c-Fos response in specific amygdaloid and hypothalamic regions, in the lateral septum ventral, in the LC, and in the dentate gyrus.
18, 19 We speculate that for this current study, the cannabinoid agonist treatment may have preserved learning and memory in the TBI-treated animals by protecting the intact brain tissue that was not directly damaged by the primary injury, and that the "rescued" brain areas were then able to compensate for the lesioned areas.
It was found that birds with larger "higher" brain areas in relation to "lower" brain areas were able to learn dozens of different notes.
"But, the research in my lab is about understanding how we're able to accomplish musical things, how the brain is able to hear music, and other areas of high-level creativity".
The reasons why the brain was able to adapt remain unclear, although the hippocampus is one of the few areas of the brain in which new cells can grow.
Despite their simplicity and sparseness, the human brain is able to reconstruct these displays as biological objects in a network that includes temporal and frontal cortical areas [25].
