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63 Cards in this Set

  • Front
  • Back

changes in the DSM

- four previous diagnoses have been combined into one disorder: autism spectrum disorder

incidence

- must appear early in development

social deficits

- failure to have social interactions


- cannot keep a normal conversation going

deficits in non-verbal communication

- doesn't make eye contact, abnormal body language


- lack of facial expression


- might not get comfort being held by parents

more deficits

- difficulty adjusting behaviour


- deficit in understanding relationships



theory of mind: Sally Anne Task

- being able to perceive the world (situation) for another persons perspective

restricted, repetitive patterns of behaviour

1) repetitive movements


2) insistence on sameness


3) preoccupation with self


- hypo or hyperactivity to sensory output

savants

"islands of ability"


cant do basic things but have areas where they excel



temple grandin

-She designed a contraption to givea certain pressure of a hug –many people with autism do not like physical contact or huge.

-She had a strong need for contactbut the pressure was too much so that is why she designed this.

potential causes

1) detached parenting - refrigerator mom


2) heredity - higher in males than females


3) concordance rates


4) mutation of gene

brain pathology

- at birth ADS children have smaller brains than typical children


- by adolescence the brain is only a little bigger than typical

structural differences in the brain

1) exceptional talents


2) hyper connectivity within brain region


3) under connectivity between brain regions

under connectivity

do things that do not match what is going on or should have happened

brain pathology

study 1 - eye movements


study 2 - face recognition


study 3 - case of D.D

STUDY 1

presented the group with faces and used an eye tracker to see where people ended up looking


- the ppl with autism avoided the eyes and mouth


- ppl w/o autism focused on mouth and eyes


- showed the ppl faces with emotion and asked what they were feeling



STUDY 2

when looking at the faces, FG plays a role in recognizing faces


- the FFA does not become active in ASD patient


- the areas seem to be random


- there is a pattern with the control group

STUDY 3

D.D - digimon destined


- knew all the digimon characters but not the people around him, including family


- when put under the fMRI, not a lot of activity with people, but active with digimon characters

BRAIN

.

encapsulated tumor

- tumor is self contained


- tends to be in discrete locations


- benign


example: memningiomas





infiltrating

- more wide spread


- malignant


- glioma

cause of stroke

1) hemorrhage


2) ischemia

hemorrhage

- cause is from the bursting of an aneurysm


- walls of blood vessels lose elasticity and start ballooning


- can be congenital or environmental

thrombosis

blood clot in the blood vessel

embolism

clotted blood cells

arteriosclerosis

thickening of the walls of arteries

cell death by ischemia

a form of accidental, or passive cell death that is often considered a lethal cell injury. The process is characterized by mitochondrial swelling, cytoplasm vacuolization, and swelling of the nucleus and cytoplasm.

closed head injuries

concussion and ****

side of head that is injured

same side


different side



contre coup

side of damage is opposite to site of impact

coup

side of damage corresponds to site of impact

contusion

bruise


- arise when brain strikes skull

concussion

no apparent bruising

hematomas

bleeding - swelling containing blood

concussion definition

loss of consciousness and no apparent damage


- multiple concussions can lead to dementia


- eg- boxers

taenia solium

tape worm found in uncooked pork

trasmission

- ingestion of larva


- worm is released and lives in intestine


- can release eggs that travel in blood stream to eyes, muscle and brain

eggs

food handled by carrier with unwashed hands

effects in brain

form a calcified nodule - forms a layer of calcium and creates boundaries between worm and tissue



what happens when worm dies

major problem - worm enters the nodule and leads to inflammation which can cause seizures

treatment

drug to kill worm AND help with inflammation

alzheimers

most common form of dementia among elderly

early symptoms

1) memory: loss of memory for people youve known your whole life


2) disorientation: everything looks foreign to you


3) repetitive speech: repeat the same phrase over and over again

middle stage

1) wandering: confused on why they are where they are


2) changes in their personality: they may rage unexpectedly


3) problems with self care: things like basic grooming and washing

final stage

1) completely dependent on care giver


2) inability to control bladder or bowel movements


3) absence of speech


4) no appetite

brain pathology

- shrinkage of brain


- widening of the sulci


- enlarged ventricles

neurofibrillary tangles

-degeneration of microtubles allows for rapid transport of transmitters across the neuron

tau protein

- mutation in the tau protein which is what holds the micro tubles together and begin to tangle

beta-amyloid plaques

primarily in inferior temporal (FFA) , posterior parietal (tells us where our body is in relation to other objects)

genes

early onset - start showing symptoms at 40 instead of senior years


familial onset - form that runs in families


late onset - in the senior years

environment

socio-economic status


aluminum

cholinergic agonists

- used to treat the memory impairment


- drugs that increase how long the acetylcholine can act on post synaptic receptors



epilepsy

- siezures


- disturbances of conciousness - youre there but not 100%

partial seizures:

1) generalized


2) partial

generalized

whole brain

partial

parts of brain

simple partial

no loss/change of conciousness

complex partial

often have loss/change of conciousness

simple partial seizures

sensory - tingling


auditory - simple sounds


visual - hallucinations


physical - nausea

complex partial seizures

interferes with higher functions


auras

catatonia

body is frozen

grand mal (tonic clonic)

tonic phase - body goes rigid followed by tremors


then post seizure depression

petit mal (abscence)

often in childhood - blank look in eyes, many throughout the day

treatments

benzos - to help GABA receptors


surgery


anticonvulsents - help seizures