lobes Flashcards
Parietal lobe
Primary somatosensory cortex:
Somatosensory association area
Parietal association area
Parietal lobe - Primary somatosensory cortex:
postcentral gyrus – tactile & proprioceptive inputs
Parietal lobe - Somatosensory association area
posterior edge postcentral gyrus & anterior portions
of superior & inferior parietal lobules
Parietal lobe - Parietal association area
multimodal sensory integration
perception of ‘self’ & visuospatial perception
Right = orients our attention in space;
Left = orients our attention in time
Contralateral neglect - right parietal lobe lesion
Although the sensory receptors & pathways for perception of stimuli are intact, stimuli from the left are neglected
Temporal lobe
Primary auditory cortex Auditory association area Temporal association areas Wernicke’s area Occipitotemporal gyrus
Temporal lobe - Primary auditory cortex
2 Heschel / transverse temporal gyri
Temporal lobe - Auditory association area
part of superior temporal gyrus lateral to Heschel gyri
Temporal lobe - Temporal association areas:
recognising stimuli or patterns
Temporal lobe - Wernicke’s area (continues into inferior parietal lobule):
understanding of written & spoken language; only present in the dominant hemisphere
- interconnected with Broca’s area (= motor speech area) of the frontal lobe
Temporal lobe - Occipitotemporal gyrus
recognition of meaning or identity of object / face
Occipital lobe
Primary visual cortex:
The rest of the occipital cortex is occupied by the visual association area & posterior association area
Occipital lobe - Primary visual cortex:
located around the calcerine (fissure) sulcus contains the stripe of Gennari (white line in the grey matter)
Lateralisation of brain function
The hemispheres share information via commissural fibers (e.g. corpus callosum), however, some functions are performed more in 1 hemisphere
LEFT HEMISPHERE
Analytic brain: logic, maths, science
- Dominant for language: >95% of R handed & 70% of L handed
Parietal association area - orient our attention in time
Perceives RIGHT visual field
Innervates RIGHT body
