Var i hjärnan finns minnen?
Det som vi i vardagligt tal kallar för ”minnen” är vanligen händelser som går att återberätta. De kallas för episodiska minnen och lagras först i just hippocampus. Efter en tid glöms händelsen bort – eller så överförs minnet till hjärnbarken, det veckade gråfärgade skikt som utgör hjärnans yttersta skikt.
What is the hippocampus?
Neurochemistry and pharmacology of the major hippocampal transmitter systems: synaptic and nonsynaptic interactions Hippocampus plays a crucial role in important brain functions (e.g. memory, learning) thus in the past two decades this brain region became a major objective of neuroscience research.
What is long-term potentiation in the hippocampus?
Since different neuronal cell types are neatly organized into layers in the hippocampus, it has frequently been used as a model system for studying neurophysiology. The form of neural plasticity known as long-term potentiation (LTP) was initially discovered to occur in the hippocampus and has often been studied in this structure.
What neurotransmitters are released from the hippocampal region?
Therefore the aim of this review is to summarize the neurochemical and pharmacological data on the release of the major neurotransmitters found in the hippocampal region: glutamate (GLU), gamma-amino butyric acid (GABA), acetylcholine (ACh), noradrenaline (NA) and serotonin (5-HT).
What happens to the hippocampus in Alzheimer’s?
In Alzheimer’s disease (and other forms of dementia ), the hippocampus is one of the first regions of the brain to suffer damage; short-term memory loss and disorientation are included among the early symptoms. Damage to the hippocampus can also result from oxygen starvation ( hypoxia ), encephalitis, or medial temporal lobe epilepsy.
Lagras i hippocampus De kallas för episodiska minnen och lagras först i just hippocampus. Efter en tid glöms händelsen bort – eller så överförs minnet till hjärnbarken, det veckade gråfärgade skikt som utgör hjärnans yttersta skikt.