Neuropsychology assessment
| Domain | Findings |
| Observation | Sleepy, inactive, hunched over rubbing nose, little change in facial expression. |
| Neurobehavioural | Difficulties with motivation, drive, initiating and engaging in social interactions. |
|
Cognitive assessment (RBANS, Hayling and Brixton, VOSP) | Severe deficit (<0.1% of age-matched individuals). |
| Memory | Immediate and delayed memory <0.2 centile (particular difficulties at encoding stage of memory processing). |
| Language | Fourth centile. No difficulty accessing word storage. Significant difficulties for self-generated production of language, that is, semantic fluency. |
| Visuospatial construction | Second centile. Intact visuospatial awareness and perception but deficits in transferring and constructing visual stimuli. |
| Executive functioning/attention | Able to attend/concentrate and comprehend but reduced ability to sustain attention/concentration. |
| Ability to inhibit responses | Low average and poor range of ability to inhibit responses compared with age related peers. |
| Rule anticipation/following and cognitive flexibility | Impaired range. Considerable difficulty anticipating response and change (also reflected in his difficulty with delayed gratification). |
RBANS, repeatable battery for the assessment of neuropsychological status, VOSP, visual object and space perception battery.