Active Learning 1 Flashcards
2 parts of consciousness
wakeful, aware
unresponsive wakefulness =
vegetative state
coma
unresponsive to internal or external stimuli (may have preserved spinal reflexes)
unarousable
NO spontaneous eye opening
unresponsive to internal or external stimuli (may have preserved spinal reflexes)
unarousable
NO spontaneous eye opening
coma
sleep-wake cycles, opens eyes
unresponsive to internal/external stimuli
not aware of self or others
may smile/grimace, reflexively grip hand
No thoughts memories emotions or intentions
Vegetative state (unresponsive wakefulness)
Vegetative state (unresponsive wakefulness)
sleep-wake cycles, opens eyes
unresponsive to internal/external stimuli
not aware of self or others
may smile/grimace, reflexively grip hand
No thoughts memories emotions or intentions
Some sleep-wake cycles
Incomplete awareness
ie alcohol, head injury, metabolic derangements
Minimally conscious state
Sleep wake cycles, intact awareness quadriplegia, sensory loss, anarthria conscious but unable to interact with external world (may be able to blink, look up or down) Brainstem lesion (bilateral ventral pons)
Locked-in Syndrome
Locked-in Syndrome
Sleep wake cycles, intact awareness quadriplegia, sensory loss, anarthria conscious but unable to interact with external world (may be able to blink, look up or down) Brainstem lesion (bilateral ventral pons)
CNS = (4)
forebrain, brain stem, spinal cord, cerebellum
Forebrain = (3)
Cerebral cortex
Basal ganglia
Thalamus
Function Forebrain
Motor control, somatosensory processing, emotion, thoughts, planning, memory
Motor control center
Executive function
Cerebral cortex - frontal lobe
Somatosensory processing
Cerebral cortex - parietal lobe
Auditory processing
New memory formation
Temporal lobe (cerebral cortex)
Emotional processing, learning & memory
Limbic structures
Visual processing location
Occipital lobe (cerebral cortex)
Coordinates choice of mutually exclusive skeletal muscle actions
Operational Learning
Links to limbic system to associate emotions, goals, motivations with movements
Dysfunction leads to movement disorders
Basal ganglia
Group of 7 different nuclei involved with choosing what actions, perceptions, thoughts, and emotions occur at any one moment.
Basal ganglia
Interpret/modulate sensory input to cortex
Change input to cortex based on arousal, sleep, vigilance etc.
Role in attention to parts or features of sensory environment
Thalamus
Homeostasis, life-sustaining functions, cranial nerve (3-12) nuclei
Brainstem
Brainstem = (3)
Midbrain
Pons
Medulla
Vertical eye movements Pupil control Posture, locomotion Non-rapid eye movement Level of arousal
Midbrain (BS)
Conjugate horizontal eye movements
Posture
Rapid eye movements
Facial expressions
Pons (BS)