Cortical lobes of the cerebral cortex (3)

Frontal lobe, what is it for?

thinking, feeling and behaving.

What does the frontal lobe coordinate?

coordinates many of the functions of the other lobes and determines our responses, and planning and initiating voluntary bodily movements.

what is the prefrontal cortex involved with

sophisticated mental abilities such as reasoning, planning, problem solving, decision making and symbolic thinking.

what does the prefortal cortex occupy and how much?

occupies more than one quarter of the entire cerebral cortex

Prefrontal cortex (attention)

picks out relevant information through senses, regulation of emotions and expression of emotional reactions, self awareness and aspects of personality such as initiating appropiate and inhibiting appropiate behaviour

Prefrontal cortex, what does it plan?

plans the required mortor sequence then sends the instructions to an area called the premotor cortex

Premotor cortex, (where is it located? and what does it prepare and organise?)

towards the back of the frontal lobe, prepares and organises the appropiate movement sequence and sends information to the adjacent primary motor cortex

Primary motor cortex (structure of it)

strip of neural tissue located at the rear of each frontal lobe and running roughly across the top of your head.

what does the primary motor cortex initiate and control?

initiates and controls voluntary movements through its control of skeletal muscles (texting friends etc…and activates and guides your fingers)

where is the primary motor cortex located? and what does it control?

in the left frontal lobe and controls voluntary movements on right side of body and vice cersa.

organisation of primary motor cortex (top-down organisation)

the lower body parts correspond to areas the are located higher on the cerebral cortex, heading towards the longitudinal fissure.

organisation of primary motor cortex (contralateral organisation)

the right pmc controls the left side of the body, and the left pmc controls the right side of the body

broca’s area (where is it located? what does it coordinate? what is it crucial for?)

located next to the primary motor cortex in the left hemisphere, coordinates movements of the muscles required for speech, and is crucial in the production of articulate speech that is clear and fluent

parietal lobe, what does it receive and process?

receives and processes bodily information, which includes touch and temperature and information about muscle movement and the body’s position

what association areas is related to the parietal lobe?

attention, spatial reasoning, awareness of body position, and taste perception

primary somatosensory cortex, what does it receive and process?

receives and processes information from the skin and body parts

homunculus (bruh idek)

repreesents the body parts in terms of the relative size fo the area each body part occupies along the primary somatosensory cortex

occipital lobe, what is it devoted to?

the primary visual cortex, almost exclusively devoted to the sense of vision.

what happens if the occipital lobe is damaged?

damage can produce serious visual impairments, even if the eyes and neural connections to the brain are normal

primary visual cortex

major destination of visual information from the two eyes, information comes to the primary visual cortex from visual sensory receptors located on the reina at the back of each eye

association area ; (primary visual cortex)

intergrete vision with other information such as reading language, hearing, and memory

temporal lobe, where is it located?

located in the lower, central area of the brain, above and around the top of each ear.

temporal lobe, what is it involved with?

involved with auditory perception and also plays an important role in memory, aspects of visual perception such as our ability to identify objects and recognise faces, and our emotional responses to sensory information and memories

primary auditory cortex, what does it receive and process?

receives and processes sounds from both ears so that we can perceive and identify different types of sounds

wernicke’s area

comprehension of speech, more specifically, in interpreting the sounds of human speech

wernicke’s area (continued)

when hearing a word, the primary auditory cortex of the left temporal lobe processes the auditory sensation, but you cannot understand the word until the information has been processes by wernicke’s area.