amygdaloid nucleus
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Definition
- Noun:
- Amygdaloid nucleus: An almond-shaped cluster of neurons located deep within the temporal lobe of the brain. It is a core component of the limbic system and is critically involved in processing emotions, emotional memories, and motivation, particularly those related to fear and reward.
Usage Examples
- Noun:
- The amygdaloid nucleus is essential for the formation of fear-related memories.
- Research shows that the amygdaloid nucleus becomes highly active when a person perceives a threat.
- Damage to the amygdaloid nucleus can impair an individual's ability to recognize emotions in others.
Advanced Usage
- "Amygdaloid nucleus activation": Refers to the measurable increase in neural activity within this structure, often observed during emotional stimuli.
- The study measured amygdaloid nucleus activation in response to frightening images.
- "Amygdaloid nucleus function": Describes the roles and operations performed by this brain structure.
- Understanding amygdaloid nucleus function is key to researching anxiety disorders.
Variants and Related Words
- Amygdala (n): The most common and general term for this structure. "Amygdaloid nucleus" is a more specific anatomical term, but in most contexts, including neuroscience, "amygdala" is used synonymously.
- The amygdala processes the emotional significance of events.
- Amygdaloid (adj): Having an almond-like shape; relating to the amygdala.
- The amygdaloid complex includes several nuclei.
- Limbic system (n): The group of brain structures, including the amygdaloid nucleus, involved in emotion, behavior, and long-term memory.
Synonyms
- Amygdala: The direct and primary synonym.
- Amygdaloid body: Another anatomical term for the same structure.
Related Phrases
- Central nucleus of the amygdala: A specific sub-region of the amygdaloid nucleus involved in fear responses and autonomic functions.
- The central nucleus of the amygdala projects to brainstem areas that control the fight-or-flight response.
- Basolateral amygdala: Another major sub-region of the amygdaloid complex involved in associative learning and attaching emotional value to memories.
- The basolateral amygdala is crucial for forming associations between neutral stimuli and emotional events.
Noun
- an almond-shaped neural structure in the anterior part of the temporal lobe of the cerebrum; intimately connected with the hypothalamus and the hippocampus and the cingulate gyrus; as part of the limbic system it plays an important role in motivation and emotional behavior