Structure of the brain and limbic system

STRUCTURE OF BRAIN-

LATERALISATION- two brain hemispheres are functionally different and has its speciality eg left=language dominant and right=visual motor skills

LOCALISATION-certain functions eg language have certain areas of the brain eg broca and wernickes area

Frontal lobe- front of brain, contains pre frontal cortex and reasoning and high level cognitive thinking

• contains BROCA AREA responsible for speech production

• contains motor cortex- contralateral voluntary movement

Parietal lobe- further back, process sensory info, spatial awareness

• somatosensory cortex- process sensory information from skin

Temporal lobe-sound info from ears

• wernickes area understanding speech

Occipital lobe-back of brain, receives info from eyes and processes it, understand colour and movement

cerebellum- little brain, highly convoluted to speed up messages, balance and coordination and movement

LIMBIC SYSTEM-

Emotions

• Amygdala - aggression and emotions

• Hypothalamus - motivation, regulation homeostasis

• SCN- circadian rhythms 24 cycle like sleep wake etc

• Thalamus - filters sensory information from senses

• Hippocampus - memory and spatial awareness

• Pons

• Medulla- regulates breathing and heart functioning