Cerebral Organization Flashcards
Are brain functions localized or diffuse?
Both
Muller’S law of specific nerve energies:
Nerve pathways in different senses have different energies that produce different perceptions
Case AR:How could he function with so much brain gone?
Plasticity and subcortical control
How is the brain organized?
Hierarchically
S- spinal cord & reflexes
H- hindbrain & postural support
M- midbrain & spontaneous movement
D-diencephalon & affect & motivation
B-basal ganglia & self-maintenance
C-cortex, perception & intention
Cortical cells:
Spiny: excitatory
Aspiny: inhibitory
4 principal connections in cortical system
Frontal lobe, paralimbic cortex, multimodal cortex, subcortical loops
Thalamic loop
Thalamus to neocortex
Thalamic loop 2
Thalamus and neocortex back-and-forth
Cortical-striatal Thalamic loop
Neocortex to striatum to thalamus & repeat
Cortical- amygdala Thalamic loop
Neocortex to amygdala to thalamus
Cortical-amygdala loop 2
Amygdala and neocortex go back and forth
Cortical- hippocampal loop
Neocortex and hippocampus go back and forth
Complexity of _______ predicts fluid intelligence
Fronto-Parietal networks
Fluid intelligence
The ability to problem solve and make abstract associations
4 unique functions of human brains
1) grammatical language
2) phonological imagery
3) theory of mind (social cognition)
4) certain forms of intelligence-intuition
