What Progress Has Been Made With Brain Level Diagnosis In Adhd Flashcards
What does the Prefrontal cortex do in terms of ADHD
Regulates and inhibits motor action
What does the basal ganglia do
Goal oriented action
What are the key brain area and networks involved in ADHD
Frontal-striatal network: frontal cortex, nucleus accumbens
Executive function network: PFC, supplementary motor, basal ganglia
What did Hogman (2017) do
Examined the grey matter structure in ADHD compared to TD
What did hogman (2017) find
Reduced cerebral volume
Prefrontal volume
Striatum volume
What did hogman (2017) show
Progress for brain level diagnoses as brain volumes differ in ADHD so we could diagnose on basis of brain volume in areas associated to ADHD
What is the point of hogman (2017) in terms of brain level diagnosis
May be able to diagnose based on grey matter
What’s a critique of hogman (2017)
Don’t know how validly we can catergorise based on grey matter volume alone
What did Hart (2013) do
Measured people’s activity levels in a go/no go task
What did hart (2013) find?
Decreased activation for inhibitoion in inferior frontal, SM and AC
Decreased activation for attention in basal ganglia and DLPFC
What does Hart (2013) show
If we know brain activity differs in people with ADHD, we can use brain activity as a basis for diagnoses
What’s a critique/ support
Further studies looking at FMRI scans in ADHD people show we can diagnose on the basis of their findings with 80% accuracy
What does Gau (2015) do
Used DTI to reconstruct 4 main front is Tristan tract
Used ADHD adults and matched controls
What does Gau (2015) find
All 4 tracts showed alter white matter integrity ( this demonstrates poorer connectivity ) in the ADHD group
What does Gau’s (2015) finding show
If differences in connectivity for ADHD and normal people are show a, it suggests a bio marker
