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Flashcards in Limbic System Deck (33):
0

Rostral system of limbic system involved in ___

emotion

1

Caudal system involved in ____

Memory
Visuospatial function

2

Anatomic systems involved in rostral limbic system: (5)

Olfactory system
Insula
Amygdala
Anterior cingulate cortex
Medial frontal cortex

3

Letinculostriate arteries supply (3)

Striatum
Globus pallidus
Internal capsule

4

Piriform cortex =
Fuction:

Uncus + amygdala + anterior parahippocampal gyrus

Olfaction

5

Lateral olfactory striae terminate in:

Piriform cortex

6

Medial striae terminal in:

Septal region
Anterior hypothalamus and anterior commissure

7

Insular cortex is involved in:

Taste
Experience of visceral pain
Affective/emotional qualities of taste, odor emotive sounds, visceral and somatic pain
Pleasant sensations

8

Pain centers: (4)

Postcentral gyrus: somatotopic location of somatic pain
Short gyri of insula: Emotional aspect of somatic and visceral pain
Amygdala: additional target for direct viscerosomatic pain signals
Periaqueductal gray area (PAG): additional target for direct viscerosomatic pain signals --> defensive behavior and main modulation

9

PAG as a pain center is important for:

defensive behavior and pain modulation

10

Major functions of amygdala: (4)

1. Associative learning involving emotional stimuli
2. Recognition of emotional stimuli
3. Emotional responses
4. Control of sexual behavior

11

Only component of amygdala that sends axons back to cortex

Basal and lateral component of amygdala

12

Receives majory of cortical inputs to amygdala

Basal and lateral component of amygdala

13

Sends axons to striatal structures (caudate, putamen, nucleus accumbens, central component of amygdala)

Basal and lateral component of amygdala

14

Power source of input to basal forebrain cholinergic neurons

Basal and lateral component of amygdala

15

Basal component of amygdala involved in:

association between emotive stimuli and neutral stimuli are made

16

Amygdala connections back to cortex are involved in:

generating recognition

17

Amygdala connections to striatum (central component) are involved in:

execution of emotive responses

18

Central component involved in:

learning and expression of emotional behaviors (fear conditioning)

Generate stereotypic responses to unpleasant/threatening stimuli

19

Corticomedial component of amygdala has a strong connection with:
Involved in:

Olfactory system and medial hypothalamus

Sexually dimorphic

Sexual behavior

20

Kluver-Bucy syndrome
Signs: (5)

Classic syndrome associated with amygdala
1. Psychic blindness: inability to detect emotional/social significance
2. Hypersexuality
3. Lack of fear
4. Hyperorality
5. Memory and learning deficits

21

Infralimbic cortex involved in:

sadness and effects of anti-depressants

22

2 components of parahippocampal gyrus

Entorhinal cortex: Organizing spatial information
Perirhinal cortex: multimodal memory storage area

23

Hippocampus involved in:

Spatial and contextual memory
Episodic memory: recall familiar personal events
Object related information

24

Lesion to anterior part of cingulate cortex results in:

Loss of social embarrassment

25

Posterior part of cingulate involved in:

Self-reference

26

Retrosplenial area involved in:

representing spatial or context-dependent memory

27

Lesion to retrosplenial area of cingulate cortex results in:

loss of ability to navigate
Can't place themselves in environmental context

28

Regions involved in psychomotor epilepsy (4)

Amygdala
Hippocampus
Medial temporal lobe
Insula

29

Symptoms of psychomotor epilepsy

Hallucination
Abnormal olfactory, taste, sexual sensation
Abnormal stereotypic movements of tongue, face, jaw
Amnesia
Aggression

30

Infects only the limbic system, especially the temporal lobe

Herpes simplex virus

31

Autism is a dysfunction in ____

cingulate and limbic striatum

32

Alzheimer's disease involves degeneration of ____

Parahippocampal gyrus (early)
Hippocampus, amygdala