Lateralization - Cerebral Asymmetry

Question 1

1. lateralization is relative

Answer 1

each hemisphere can participate in each function

Question 2

2. cerebral site

Answer 2

just as important as cebreal side

Question 3

3. lateralization can be influenced by environmental and genetic factors

Answer 3

less lateralization in females and left handed people

Question 4

4. animals

Answer 4

are characterized by functional and anatomic asymmetry

Question 5

LH - specialization

Answer 5

language and speech 
- reading - writing etc.
temporal ordering 
- language - motor activity
fine analysis
- indetifying daces

Question 6

RH - specialization

Answer 6

attention and arousal
- neglect 
     -> spatial, touch, motor 
         activity
     -> conseq. for 
         rehabilitation
complex visual info. processing
- face, gestalt 
language
- word comprehension
- semantic memory
- understanding language in specific context
- emotion of language

Question 7

Model of unilateral specialization

-> each hemisphere has its own specific function

Answer 7

LH = fine analysis of info.
dominant for fine motor activity
-> small lesion = big consq.
RH = diffuse organization of spacial capacities 
-> small lesion = no conseq.
-> important for spatial function 
requires integration of various types of information 
-> visual - auditory ...

Question 8

Model of interaction

-> both are able to perform all tasks but don’t

Answer 8

• work simultaneously
• inhibit each other’s activity
  lesion
  -> specific functions can be taken over - e.g. language
• each has preference for specific type of info.