Higher Cortical Function Flashcards
What provides most of the inputs to the dense collection of neurones in the cortex?
Mostly Thalmic Inputs
cortex also communicates with other cortical areas
(spinothalamaic, visual etc…)
Which cell type (strucutre) provides most of the outputs from the cortex?
Pyramidal Cells
What are 3 broad functions of the frontal lobe?
Motor Output
Expression of Speech
Behavioural Regulation
Cognition (e.g. mental arythmetic)
Continence
What does the frontal lobe co-ordinate via the corticonuclear projections?
Eye Movements
Which hemisphere of the frontal lobe is usually responsible for expression of speech?
Left Hemisphere
TBC
How may a patient present with a frontal lobe lesion?
What are 3 major functions of the parietal lobes?
Sensory Perception
Comprehension of Speech
Body Image
Which visual pathway passes through the parietal lobe?
Superior Optic Radiation
Which lobe of the brain may be damaged when a patient develops neglect syndrome and outline how it may manifest?
Parietal Lobe
patient neglects half of their body / environment
- only eating half a plate of food*
- ignoring limbs on one side of the body*
- only copying half a picuture of a clock face*
TBC
How may a patient present with a parietal lobe lesion?
What are 3 broad functions of the temporal lobe?
Hearing
Olfaction
Memory
Emotion
Which visual pathway passes through the temporal lobe?
Inferior Optic Radiations
Which specific part of the temporal lobe is responsible for laying down long term memories?
Hippocampus
TBC
How may a patient present with a temproal lobe lesion?
What is cerebral dominance and how can this be useful clinically?
certain functions are over-represented in one hemisphere of the brain
left hemisphere
language / mathematics
right hemisphere
body image / emotion / visuospatial awareness
a patient with difficulty speaking may have a left hemisphere lesion