Download 12 Culture and Identity

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Speech perception wikipedia, lookup

Origin of speech wikipedia, lookup

Cognitive neuroscience of music wikipedia, lookup

Embodied language processing wikipedia, lookup

Mirror neuron wikipedia, lookup

Psycholinguistics wikipedia, lookup

Transcript
Introduction to Psychology
Culture and Identity
Prof. Jan Lauwereyns
[email protected]
What about language on the left?
• Lateralization of Brain Function
• Two hemispheres are not mirror images of each
other
– left hemisphere controls right side of body
– right controls left side
– taste and smell input to same side
• Lateralization is the specialization of labor between
the two hemispheres
– left hemisphere specialized for language
– right specialized for complex visual-spatial tasks
and synthetic processing
• Left brain, right brain
• Why should there be such functional
segregation?
– Advantages of specialisation?
– Of parallel processing?
• Do monkeys have it too?
• Or does it originate with language?
• Handedness and Language Dominance
• Right handedness a heritage
– 10% of people are left-handed or ambidextrous
– 90% of prehistoric drawings show tools in right
hand
– most chimps and other primates are right handed
• Left handers
– have equal as well as left or right hemisphere
dominance for speech
• if right is dominant, left hemisphere contributes more to
spatial perception
– Corpus Callosum is thicker for greater
communication
Not quite as
famous as
Sir Edmund
Hillary,
but…
Where does Corballis get his idea?
• Corticol control of manual movements
• Primates acquiring sign language
• The mirror system in monkeys
• Left hemisphere for speech and hands
• Deaf use sign languages with full syntax
• Nonverbal gestures during speech
• FOXP2 gene mutated about 200,000 years
ago
FOXp2
Where does Corballis get his idea?
• Corticol control of manual movements
• Primates acquiring sign language
• The mirror system in monkeys
• Left hemisphere for speech and hands
• Deaf use sign languages with full syntax
• Nonverbal gestures during speech
• FOXP2 gene mutated about 200,000 years
ago
The mirror system
Ventral premotor
area –
monkey homologue
of Area 44 in
frontal cortex,
that is,
Broca’s Area
Studied by
Rizzolatti and co.
The mirror system
• Neurons in ventral premotor area
• …activated both when the subject performs
an action and when the subject observes
someone else perform the same action
• Abstract action representation
• This system likely plays a role both in
recognising and planning actions (“thinking
about actions”)
Mirror neurons and imitation?
(But monkeys don’t imitate much)
Importance of the mirror system?
• Understanding action?
• Origins of language?
• Empathy?
• Morality?