Limbic System and Reticular Formation

This set of flashcards covers key terms and concepts related to the Limbic System and Reticular Formation discussed in the lecture.

Limbic System

A complex set of structures in the brain that supports functions such as emotion, behavior, motivation, long-term memory, and olfaction.

Amygdala

A critical structure in the limbic system involved in emotion processing, especially emotional memories.

Hippocampus

A key structure in the limbic system associated with the consolidation of memory and learning.

Hypothalamus

A region of the brain that helps maintain homeostasis and regulates various autonomic functions.

Olfaction

The sense of smell, which is closely tied to memory and emotional processing.

Homeostasis

The maintenance of stable internal conditions in the body necessary for survival.

Short-Term Memory

A type of memory that is limited in capacity and duration, typically lasting only a few seconds.

Long-Term Memory

A type of memory capable of storing large amounts of information for extended periods.

Declarative Memory

A type of long-term memory that involves conscious recall, including semantic and episodic memories.

Nondeclarative Memory

A type of long-term memory that is not consciously recalled, including skills and habits.

Reticular Formation

A set of interconnected nuclei that regulates arousal, consciousness, and muscle tone.

Reticular Activating System (RAS)

A network in the brain that regulates wakefulness and sleep-wake transitions.

Mesolimbic Tract

The pathway connecting the reticular formation to limbic structures like the amygdala, important for reward and pleasure.

Mesocortical Tract

The pathway connecting the reticular formation with the frontal lobe, involved in motivation and executive functions.

Consciousness

The state of being aware of and able to think about one's own existence, sensations, thoughts, and surroundings.

Emotional Regulation

The ability to manage and respond to emotional experiences effectively.

mesolimbic tract

connection between reticular formation and basil ganglia, hippocampus and amygdala, reward and pleasure, increased meslimbic activity can lead to schizophrenia

mesocortical tract

connection between reticular formation and frontal lobe, anterior cingulate and entorhinal, motivation, executive functions, and emotional regulation

reticular activating system

connects brainstem to brain, spinal cord and cerebellum, regulates levels of consciousness and cortical alertness