What is the relationship between the hippocampus and the amygdala?
The amygdala is specialized for input and processing of emotion, while the hippocampus is essential for declarative or episodic memory. During emotional reactions, these two brain regions interact to translate the emotion into particular outcomes.
What role does the amygdala hippocampus and hypothalamus play in emotion?
The hypothalamus plays a role in the activation of the sympathetic nervous system, which is a part of any emotional reaction. The amygdala plays a role in processing emotional information and sending that information on to cortical structures. The hippocampus integrates emotional experience with cognition.
What are the roles of the amygdala prefrontal cortex and hippocampus and how do they affect decision making?
For example, decision-making is believed to involve areas of the brain involved in emotion (e.g., amygdala, ventromedial prefrontal cortex) and memory (e.g., hippocampus, dorsolateral prefrontal cortex). Decades of research have shown that the amygdala is involved in associating a stimulus with its emotional value.
What functions does the hippocampus and amygdala control?
The hippocampus is responsible for the processing and storage of short-term memory. The amygdala is responsible for emotions, moods, and other functions related to depression and anxiety.
Does the amygdala activate the hippocampus?
The amygdala is the most notably involved brain structure in emotional responses and the formation of emotional memories. This dual activation of the amygdala and the hippocampus and the dynamics between them may be what gives emotionally based memories their uniqueness.
How do the roles of the hippocampus and the hypothalamus differ?
The hypothalamus controls emotions. It also regulates your body’s temperature and controls crucial urges — such as eating or sleeping. The hippocampus sends memories to be stored in appropriate sections of the cerebrum and then recalls them when necessary.
What is the amygdala responsible for?
The amygdala is commonly thought to form the core of a neural system for processing fearful and threatening stimuli (4), including detection of threat and activation of appropriate fear-related behaviors in response to threatening or dangerous stimuli.
Is hippocampus posterior to amygdala?
The amygdala is located in the medial temporal lobe. It has a rounded shape and is situated anterior and superior to the hippocampus. Anteriorly, the amygdala borders the entorhinal/perirhinal temporopolar cortex. Superiorly, it borders the basal forebrain and the choroidal fissure.
How is the hippocampus connected to the amygdala?
Note the reciprocal connections between the hippocampal formation and the association cortex, and the inclusion of the amygdala and prefrontal cortex. The hippocampus has direct connections to the entorhinal cortex (via the subiculum) and the amygdala. These structures connect to many other areas of the brain.
Where does the hippocampus receive afferent input from?
The hippocampus also receives afferent input from the prefrontal cortex, anterior cingulate gyrus, and premammillary region of the brain, as well as from monoamine neuronal projections from the reticular formation in the brainstem (specifically from the locus coeruleus, raphe nucleus, and ventral tegmental area).
How is the hippocampus connected to the cingulate cortex?
The hippocampus has direct connections to the entorhinal cortex (via the subiculum) and the amygdala. These structures connect to many other areas of the brain. The entorhinal cortex projects to the cingulate cortex.
How is the hippocampus related to the thalamus?
Because the mammillothalamic tract also goes to the anterior thalamic nucleus, the hippocampus can affect the thalamus indirectly as well as directly. The anterior thalamic nuclei in turn connect to the cingulate cortex.