Lecture 15 Flashcards
Adolescence intro
Age of adolescence is not specified it’s from puberty through to adulthood
Uncertainty as
onset of puberty varies
age of reaching adulthood varies
What characterises adolescence
Biological changes
cognitive performance changes family relationship changes
Neurological and cognitive development
Could ask three questions
question one easy to observe behaviour change but what about biological changes in brain
question two does brain change if so how and where
question three can attribute behaviour changes to changes in the brain
MRI data neurological development
Giedd et al 2011
Total cerebral volume peaks just prior to adolescence in females 10 years and during adolescence in males 14 years
Why white matter matters neurological development
Making sense of the world demands the making of links in the brain hence importance of myelination process
Lenroot et al 2007
- White matter Increases especially during adolescence corpus callosum made up of white-matter and connects hemispheres possibly accounts for the increase of cognitive functions in memory of language and attention
- Market development in childhood and adolescence age 4 to 24
Why white matter matters continued neurological and cognitive development
Advances in MR technologies allows for closer examination, diffusion tensor imaging can detect anisotropy of axons (increases anisotrophy, increase mem Lang iq)
-anisotrophy shows Development trend prior to adult hood
Brain and behaviour
Can we correlate structural changes with behavioural changes very difficult evidence to date slight often on nonhumans even then cross-sectional not longitudinal
what can we expect you in adolescence increase white-matter, white-matter increases functioning of brain, increase anisotropic white-matter correlates with an increase IQ and cognitive resource
Neurological change=cognitive change
Piaget theory
Piaget theory- adolescents actively construct their understanding of themselves and world around them
Stages- Concrete operational 7 to 11 , formal operations 11+ (adolescent is the shift)
Formal- Thought becomes orientated towards the possible as distinct from current reality. thinking becomes more abstract opportunity for hypothetical thinking emerges
Piaget continued
Hypothetical thinking allows individuals to imagine how the world could be and how this may be achieved
this thinking impact perception of the degree of difference between world as it is in the world I would like it to be
Adolescence brings possibility to anticipate all possible outcomes due to the outcomes being hypothetical -link between imagination and logic systems transforms worldview
Just hypothetical thinking emerge during childhood
Young children engage in make-believe play Is this hypothetical thinking
1) use imagination to create counter to reality scenario
2) infer consequences of being in the scenario
3) grasp distinction between imagined and real world
Is it possible to conclude hypothetical thinking is reflected in Childs play
No
1) concrete materials are needed adolescence bring mental workspace
2) adolescence brings capacity to imagine and compare multiple possible scenarios
3) uni directionality between two worlds children use real world knowledge to inform imagine scenarios but not vice versa
Evidence of developmental differences
Guttentag and Ferrel2008 children and teens and adults told story, person will get a gift from whichever box they choose. person picks box a and that’s good gift but great gift is in box b.
all three groups inferred regret On part of the person
only teens and adults said they hoped box B is empty as they are only able to imagine hypothetical conditioning where regret can be avoided
Self identity theory one
Freuds psychosexual theory five stages of development oral 0 to 1’ Anal 1-3 Phallic 3-5 Latency 5-12/13 Genital 13+ - adolescence onset
The Libido changes location within body over the course of development results in a concentration of energy localised in zone, results in tension. Release of tension possible of stimulation applied to areas where energy is located
Freuds theory continued
Adolescences to primary tasks 1)replacement of pregenital - drives sexual primacy, major force influencing behaviour
2) resolution of Oedipal conflicts- Detachment from parents and establishment of a mature hetero sexual relations
Freud role of ego
Ego develops= development of ideas about self
job of ego is to control sexual tension in a way that is socially and personally acceptable
ego finds the balance between competing drives ID and super ego