TASK 5 Flashcards
SYMPATHETIC DIVISON
activity in this region prepares to thretening situations
parasympathetic deivision
promotes building of metabolic resources (food & drink)
endocrine system
responsible for secretion of hormones in bloostream
autonomic & endocrine sytem are part of
the bodys hoemeostatic regulatory mechanis,ms
ivolved in sleep , sex , hunger
autonomic system
parasympathetic + sympathetic
mclean
hippocampus responsible for bodily responses + concious feeling s
buuuut damgae to hippocampus does not cazse problems with emotion or feelings
hypothalamus controls
motivational staes leading to eating drinking, sex
fundamental for life
nonlimbic arousal
ARAS in reticular formation of brain stem ; aroeusal same as wehn we encounter novel stimuli
limbic arousal
thissystem includes hypothalamus, activates sympathetic n system
arousal is accompanied by strong motivational bejaviour plus strong positive or negative affect ( pleausre& displeasure-> not like nonlimbic
….
Amygdala thalamus orbital & medial frontal lobes
Amygdala BG which receives info from PFC
Thus, amygdala influences selection & initiation of behaviours aimed at obtaining rewards & avoiding punishment
May also account for subjective feelings of emotional states as they need cognitive self-awareness
Orbital & medial frontal lobes
Associate info from sensory modalities & integrate those
Influence content retrieved from memory & help shape mental response plans parallel to amygdala
Lesion in VMPFC = antisocial symptoms while still actually knowing the “rules”
forced pyramidal smile
motor cortex & brainstem voluntairy contractiomn ; motor cortex & barinstem via pyramidal trcat
duchenne smile
motor areas in anterior cingulate gyrus,
from medial frorebrain & hypothalamsu
extrapyramidal through reticular fromation
reticular formation then
projects to motor neuron pool, produces visceral & somatic motor resposnses that overrides reflex
episodic memory circuit
papez
spatial memmory
parahippocampal unit
emotional subsytem
Amygdala stria terminalis septal nuclei & pre-optic nucleus of H where it can control expression of emotions
Extended amygdala: central, medial & bed nucleus of stria terminalis (BST, set of nuclei surrounding stria)
Main output channel
Nuclei responsible for emotional expression (endocrine, autonomic & somatomotor aspects)
Give rise to many pathways to hypothalamic & brainstem
Receives input from several sensory systems
Limbic Cortex
High-end side – involved with cortex & voluntary behaviour
Edge of the cerebral cortical sheet
Bottom to top: uncus (= parahippocampal gyrus) ictus (= ventral cingulate gyrus) caudal orbitofrontal cortex & rostral insula
cortex
Hippocampal-diencephalic circuit
Connects memory subsystem via cingulum with the posterior cingulate cortex
Posterior cingulate cortex is the first major medial hub of the default mode network
Temporo-amygdala-orbitofrontal network
Integration of visceral & emotional states with cognition & behaviour
Connects amygdala via orbitoinsular cortex with anterior cingulate cortex (which is the second major hub)
