Publications by authors named "Timothy Calton"
Background: Impaired cognitive control has been frequently observed in children and young people with attention deficit hyperactivity disorder (ADHD) and might underlie the excessive hyperactivity and impulsivity in this population. We investigated behavioural and electrophysiological indices relevant to one domain of cognitive control; namely error processing.
Methods: Adolescents aged 14 to 17 with ADHD (n = 23) and a typically developing control group (HC; n = 19) performed a visual go/no-go task.
Background: Patient-centred medicine improves psychological and physiological functioning in chronic illnesses.
Aims: To determine to what extent the patient-centred ethos (as exemplified by research addressing subjective experiences) was incorporated into work presented at major international schizophrenia research forums between 1988 and 2004.
Method: Whole population-based, retrospective cohort study using abstracts from the International Congress on Schizophrenia Research and the Biennial Winter Workshop on Schizophrenia (n = 9,284).
Background: Identifying trait markers specific to schizophrenia might uncover mechanisms underlying illness susceptibility. Previous research shows the N2 and P3 event-related potentials are abnormal in schizophrenia; specificity of these potential trait markers has not been well established.
Methods: Electroencephalogram data were recorded from four adolescent groups: early-onset schizophrenia patients (SZ; n = 30); non-psychotic siblings of schizophrenia patients (SZ-SIB; n = 36); healthy control subjects (HC; n = 36); a neurodevelopmental attention-deficit/hyperactivity disorder (ADHD) comparison group (n = 27), during auditory oddball and visual go/no-go tasks.