Limbic System Flashcards
Role
Species preservation Motivation Memory Arousal Species preservation Response to emotional stiuli Reinforcing behaviours
Connect to which structurs\systems
Telencephalon & diencephalon\
Olfactory system
List 2 major structual divisons
Subcortical
Cortical
Overview of organization
Association COrtex ↓ Limbic cortex ↓ Limbic subcortical strcutures ↓ Hypothalamus - Endocrine - Autonomic - Behavior
Name 3 subcortical structures
OSA
Olfactory Signals
Septal uclei
Amygdala
Septal Nuclei Function Input\Reciricoal Connections Output Disease
Function
- Memory encoding
Input\Reciprocal Connections
- Hippocampal formation
- Amygdala
- Hypothalamus reoptic area
Output
- Median eminence
- Mamillary body
Disease
- Septal rage or behavioral overreaction
Amygala
Function
Disease
Treatment
Function
- Assign emotional value to sensory cues
- Emotional memory
- Face recognition
- Behavors
- Feeding
- Mating
- Fighting
- Response to stress
- Coordinates environmental stimuli to co-ordinated behavioral, autnonmic & endocrine responses
Disease
- Addiction
- Behavioral arousal + direct rage
- Reduced response to stress or fear
Treatment for PTSD
- Use cortex input to amygdala to reset emotional responses to normal stimuli
Limbic Cortex
Function
3 parts
Function
Subjective interpretation of a stimulus and decision about how to act
Parts (CIPO)
- CIngulate Cortex
- Insular Cortex
- Prefrontal Cortex
- Olfactory Signaa
Prefrontal Cortex
2 Functions
When does development occur
Disease
Excutive function & Mood, motivation & emotional control
Post-natal development
Mood disorders i.e. unipolar depression
Cingulate Cortex
Function
Disease
Function: Pain tolerence
Disease:
- Chronic Pain
- Overactive in depression
Insular Cortex
Function
Disease
Function - Interoception - Regulation of autonomic responses Disease - Addiction
Anterior Insula
Function
- SUbjective emotional experiences
- Emotional reactions
Genralized Anxiety
Thin nucleus of stria terminalis
