Physiology II for pharmacy students
L07: Areas of the cerebral cortex and Sensation Date: 25.feb.2020
areas of the cerebral cortex.
Ex: the primary sensory area is concerned of detecting the sensation
(there is a sensation or there is not?). while the secondary
somatosensory area gives meaning to these sensations and determines
their location.
Now a damage in the secondary somatosensory area can cause the
person to l
called Amorphosynthesis.
Remember: this is going to be a contralateral disease, meaning:
damage in the left hemisphere causes loss of sensation from the right
side of the body.
We have also explained the areas of speech and language ( and
terms of language one hemisphere is dominant.
95% of people their left hemisphere is the dominant hemisphere
regardless handedness (wither this person is left or right handed).
And if we talk about handedness: 99% of right- handed people the
left hemisphere is their dominant hemisphere. While this
percentage is less for the left- handed people where 2 out of 3 of
them have a left dominant hemisphere.
Others: half of them have a RIGHT dominant hemisphere and the
other them have NO DOMINANT hemisphere.
Note:
, Sensory Aphasia (inability to speak. He
sense).
Motor Aphasia (inability to express, he
has ideas but can NOT express them, he may write them).
On the other hand, a damage to both causes Global Aphasia.
The Prefrontal Area: concerned
with the behaviors in accordance
with social values, personality,
planning of complex movement,
solving equation and decision
making.
Damage of the prefrontal area can
cause social disinhibition.
Story of discovery: the construction accident that happened to Phineas
Gage in 1848 which ended with him having an iron rod throw his skull.
That caused a damage to his prefrontal area and after that they
discovered its function.
The Limbic Association area:
motivation, memory.
Lateral prefrontal cortex: language comprehension and word analysis.
L07: Areas of the cerebral cortex and Sensation Date: 25.feb.2020
areas of the cerebral cortex.
Ex: the primary sensory area is concerned of detecting the sensation
(there is a sensation or there is not?). while the secondary
somatosensory area gives meaning to these sensations and determines
their location.
Now a damage in the secondary somatosensory area can cause the
person to l
called Amorphosynthesis.
Remember: this is going to be a contralateral disease, meaning:
damage in the left hemisphere causes loss of sensation from the right
side of the body.
We have also explained the areas of speech and language ( and
terms of language one hemisphere is dominant.
95% of people their left hemisphere is the dominant hemisphere
regardless handedness (wither this person is left or right handed).
And if we talk about handedness: 99% of right- handed people the
left hemisphere is their dominant hemisphere. While this
percentage is less for the left- handed people where 2 out of 3 of
them have a left dominant hemisphere.
Others: half of them have a RIGHT dominant hemisphere and the
other them have NO DOMINANT hemisphere.
Note:
, Sensory Aphasia (inability to speak. He
sense).
Motor Aphasia (inability to express, he
has ideas but can NOT express them, he may write them).
On the other hand, a damage to both causes Global Aphasia.
The Prefrontal Area: concerned
with the behaviors in accordance
with social values, personality,
planning of complex movement,
solving equation and decision
making.
Damage of the prefrontal area can
cause social disinhibition.
Story of discovery: the construction accident that happened to Phineas
Gage in 1848 which ended with him having an iron rod throw his skull.
That caused a damage to his prefrontal area and after that they
discovered its function.
The Limbic Association area:
motivation, memory.
Lateral prefrontal cortex: language comprehension and word analysis.
