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Hippocampal replay is a phenomenon observed in rats, mice, [1] cats, rabbits, [2] songbirds [3] and monkeys. [4] During sleep or awake rest, replay refers to the re-occurrence of a sequence of cell activations that also occurred during activity, but the replay has a much faster time scale.
The goal is "getting your heart rate up," she explains, adding that you can get aerobic exercise from things you're already doing — just "add a little bit of a jump in your step, and there it is."
The hippocampal subfields are four subfields CA1, CA2, CA3, and CA4 that make up the structure of the hippocampus.Regions described in the hippocampus are the head, body, and tail, and other hippocampal subfields include the dentate gyrus, the presubiculum, and the subiculum.
The hippocampus is located in the medial temporal lobe (subcortical), and is an infolding of the medial temporal cortex. [1] The hippocampus plays an important role in the transfer of information from short-term memory to long-term memory during encoding and retrieval stages. These stages do not need to occur successively, but are, as studies ...
Several olfaction-memory processes occur in the hippocampus. Similar to the process in the amygdala, an odor is associated with a particular reward, i.e. the smell of food with receiving sustenance. [26] Odor in the hippocampus also contributes to the formation of episodic memory; the memories of events at a specific place or time. The time at ...
However, an excess of cortisol can impair the ability of the hippocampus to both encode and recall memories. [2] These stress hormones are also hindering the hippocampus from receiving enough energy by diverting glucose levels to surrounding muscles. [2] Stress affects many memory functions and cognitive functioning of the brain. [10]
The trisynaptic circuit or trisynaptic loop is a relay of synaptic transmission in the hippocampus. The trisynaptic circuit is a neural circuit in the hippocampus, which is made up of three major cell groups: granule cells in the dentate gyrus, pyramidal neurons in CA3, and pyramidal neurons in CA1. The hippocampal relay involves three main ...
Some people may also have genes that increase their risk. For example, certain genes can make an individual more salt-sensitive and prone to hypertension when consuming high-salt foods. For these ...