Kantini, Ebrahim and Cassaday, Helen J. and Hollis, Chris and Jackson, Georgina M. (2011) The normal inhibition of associations is impaired by clonidine in Tourette syndrome. Journal of the Canadian Academy of Child

The Normal Inhibition of Associations is Impaired by Clonidine in Tourette Syndrome.

OBJECTIVE We examined the inhibition of stimulus-stimulus associations (formally 'conditioned inhibition') in Tourette syndrome (TS). METHOD The present study used video game style conditioned inhibition procedures suitable for children and adolescents. We tested 15 participants with a clinical diagnosis of TS in the absence of co-morbid attention deficit hyperactivity disorder and compared t...

Associative learning in ADHD: improved expression under methylphenidate

Attention Deficit/Hyperactivity Disorder (ADHD) is characterised by developmentally inappropriate levels of inattention, impulsivity and hyperactivity. As might be expected of a disorder in which inhibitory deficits form part of the diagnostic criteria, deficits in response inhibition in ADHD have been evidenced in a number of studies. To date, the tasks used in such studies have required parti...

8 An associative analysis of Tourette syndrome

Co-Morbidity of Attention Deficit Hyperactivity Disorder (ADHD) and Tourette Syndrome in Child Referral Psychiatry Clinic in Iran

Objectives: Tourette syndrome is a disorder with motor and vocal tics, which has many psychiatric comorbidities. Attention Deficit Hyperactivity Disorder (ADHD) is one of co-morbid features of this syndrome. The aim of this research is studying Tourette and co morbidity ADHD in school age children. One of our purposes is to identify the range of ADHD in Iranian Tourette patients. Methods: Th...

Tourette-like behaviors in the normal population are associated with hyperactive/impulsive ADHD-like behaviors but do not relate to deficits in conditioned inhibition or response inhibition

Attention-Deficit Hyperactivity Disorder (ADHD) and Tourette Syndrome (TS) present as distinct conditions clinically; however, comorbidity and inhibitory control deficits have been proposed for both. Whilst such deficits have been studied widely within clinical populations, findings are mixed-partly due to comorbidity and/or medication effects-and studies have rarely distinguished between subty...