Atypicalities in lower-level processing

Question 1

Falter et al 2012

Answer 1

Those with ASD have lower thresholds for detecting when 2 visual stimuli are presented in asynchrony. The lower the thresholds the lower the self reported social and comm skills. Links to W.C.C- unable to integrate visual info on a normal temporal sequence impacts S&C. Temporal integration however wasn’t directly measured and the sample was only H.F.

Question 2

Ashwin et al 2014

Answer 2

Used alcohol to test heightened olfactory sensitivity in ASD. Purely a detection test. Enhanced lower-level processing may mean those with ASD are flooded with information in social contexts, leaving them unable to integrate all the information in a meaningful way. Included a placebo, traits only present in those with ASD not AQ domains. Links to W.C.C.

Question 3

Lahie et al 2006

Answer 3

Disputed the findings regarding the F.I.E in ASD, made the task simpler to limit complexity. Did find that those with ASD rely more so on atypical features and non-features for facial recognition but may still suffer from inversion effect, links to EPF- local bias but can use global meaning.

Question 4

Mottron et al 2003

Answer 4

Critiqued the original W.C.C theory before revision in 2006. Those with EPF only occurs on certain tasks in ASD, which goes against the idea of global deficit originally proposed. Controld perform slowed on embedded figures task whereas ASD perform similarly accross embedded figures tasks and isolation tasks- local bias rather than global deficit.

Question 5

Cribb et al 2016

Answer 5

Superior performance on Embedded figures task is also found in those which show a high symptom load in the BAP.