Relation between Motor Abilities and Intelligence Quotient in Early Onset Neurodevelopment Diseases

Background
Some previous studies (Ferrin 2012) (Cuesta 2002), have proved the association between motor disorders and cognitive impairment. However, it was used a test (NES) that takes over 45min to do. Our objetive is to determinate how the motor habilities measured with the PURDUE’S PEGBOARD TEST (that takes around 5 min) is able to predict the IQ in pacients diagnosed as Early Onset Schizofrenia and ADHD.

Methods
We included in our study 73 pacients diagnosed as Early Onset Schizofrenia and 44 ADHD pacients. We used the WISC test to measure the IQ. In order to determinate how Motor Habilities are able to distinguish those pacients with 70 IQ, we realized a ROC.

Results
The results were that, in pacients diagnosed as Early Onset Schizofrenia, the PURDUE’S PEGBORAD TEST has a AUC (Area Under Curve) in the ROC of 0,835 over 1. On the other hand, in ADHD pacients, the AUC was 0,551 over 1.

Discussion
We can conclude that PURDUE’S PERGBOARD TEST is able to discriminate the IQ in Psychotic pacients but not in ADHD pacients.