Lecture: The Brain: Part 2The three lobes: take input from the world and putting it into the brain
Frontal lobe: taking information and coordinating to the world
The right-language and communication, left: sounds, music etc.
Partial Lobe: A good representation of your body and the obstacles. (lateralization a little
Right partial lobe: movement of the body
We just know where our body is at all times. There is some sort on internal sensation-
An internal perception where our body is at all time.
Damages to left parietal lobe would cause motor impairments
Right Parietal lobe: what is out on the world
When there damages to the right parietal lobe neglect the left side of space (the left side
of the world is gone)
Input comes from the body and the world.
Sensory strip: Primary cortex for the partial lobe. Sensory input from touch
Different parts of the body were stimulated different parts of the sensory strip would be
Our hands have the most sensory neurons-fingertips (highest concentration on sensory
Two ways of stimulation of sensory cortex-external simulation and random brain
simulation-give feeling of an itch
Anything that stimulates will remap to the opposite side of the body
Primary Motor Cortex: moving body parts-stimulate-behave with that opposite side.
That amount of cortical is in proportion not the actual size but proportionate to the motor-
sort of way (brain tissue devoted to our tongue)
Motor Cortex is proportionate to what they actually use to manipulate the world (people
without hands, have a lot of motor cortex dedicated to feet)
Frontal Lobotomy was popular before very good drugs.it consists of cutting the
connections to and from the prefrontal cortex (frontal lobe and rest of the lo