What is the dorsal hippocampus?

The dorsal hippocampus, which corresponds to the posterior hippocampus in primates, performs primarily cognitive functions. The ventral (anterior in primates) relates to stress, emotion and affect.

What is the function of the hippocampus?

Hippocampus is a complex brain structure embedded deep into temporal lobe. It has a major role in learning and memory. It is a plastic and vulnerable structure that gets damaged by a variety of stimuli. Studies have shown that it also gets affected in a variety of neurological and psychiatric disorders.

Where does the dorsal hippocampus project to?

The dorsal hippocampus projects to the retrosplenial area (RSP) of the anterior cingulate cortex and to the ventral tegmental area (VTA) via the septum. These projections serve a functional role in context-dependent cognitive processes. Dorsal hippocampus also sends projections to the ventral hippocampus.

What is ventral hippocampus?

The ventral striatum, amygdala, and hippocampus are components of the mesolimbic dopamine pathway, which has been implicated in the rewarding effects of drugs, drug-related memories, and conditioned responses.

Is CA1 dorsal or ventral hippocampus?

The CA1, an important subregion of the hippocampus, is anatomically and functionally heterogeneous in the dorsal and ventral hippocampus.

What type of memory is most impaired by damage to the hippocampus?

Hippocampal damage impairs spatial memory. 11.

What is the CA1 region of the hippocampus?

CA1. CA1 is the first region in the hippocampal circuit, from which a major output pathway goes to layer V of the entorhinal cortex.

What does dorsal mean brain?

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Dorsal: Toward the top of the brain or the back of the spinal cord. Ventral: Toward the bottom of the brain or the front of the spinal cord. Rostral: Toward the front of the brain or the top of the spinal cord. Caudal: Toward the back of the brain or the bottom of the spinal cord.

What is dorsal brain?

Dorsal: Toward the top of the brain or the back of the spinal cord. Ventral: Toward the bottom of the brain or the front of the spinal cord. Rostral: Toward the front of the brain or the top of the spinal cord. Caudal: Toward the back of the brain or the bottom of the spinal cord.

What are symptoms of a damaged hippocampus?

If one or both parts of the hippocampus are damaged by illnesses such as Alzheimer’s disease, or if they are hurt in an accident, the person can experience a loss of memory and a loss of the ability to make new, long-term memories.

What happens to memory if hippocampus is damaged?

If the hippocampus is damaged by disease or injury, it can influence a person’s memories as well as their ability to form new memories. Hippocampus damage can particularly affect spatial memory, or the ability to remember directions, locations, and orientations.