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The hippocampus is known to play a role in the encoding of memory that associates between a face and a name. The experiment began by dividing encoding blocks, in which the participants viewed and attempted to memorize the faces paired with the names, from retrieval blocks, in which the participants were shown only the faces and asked to match ...
Activation in the hippocampal region associated with episodic memory encoding has been shown to occur in the rostral portion of the region whereas activation associated with episodic memory retrieval occurs in the caudal portions. [20] This is referred to as the Hippocampal memory encoding and retrieval model or HIPER model.
A Rotating View of the Hippocampus. The hippocampus plays an important role for remembering specific personal experiences in humans, as well as memory for sequence of events. [14] A series of lesion studies assessed the role of the hippocampus on retrospective memory. In the first delayed response task, nonhuman primates were shown two food wells.
For example, the hippocampus is believed to be involved in spatial and declarative memory, as well as consolidating short-term into long-term memory. Studies have shown that declarative memories move between the limbic system , deep within the brain, and the outer, cortical regions.
Alcohol impairs episodic encoding, specifically for cued recall, recognition of completed word fragments, and free recall. [31] A blackout is an example of a difficulty in encoding episodic memories due to alcohol. Blackouts are caused by a rapid increase in blood alcohol concentration (BAC) which in turn distorts the neurons in the hippocampus ...
Food caching behavior reaches a maximum in August, continues through the winter and declines in the spring. They showed that the amount of neurons added to the hippocampus was also at a max during August and winter, and declined into the spring. Using selective hippocampal lesions, cause-effect relationships were shown.
Most recently, an intracranial EEG study found that the amygdala triggered more pronounced hippocampal sharp-wave ripples after the encoding of more arousing experiences, which are believed to play a critical role in memory consolidation. [11] However, a growing body of research is dedicated to the emotional valence dimension and its effects on ...
Physical activity has a significant influence on the hippocampus, since this is the part of the brain that is responsible for encoding information into memory. [61] With physical activity having such an impact on the hippocampus this can regulate other parts of the body as well like weight, memory, daily function, and many more processes that ...