James Harwood

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The prevalence of an abnormal response to the dexamethasone suppression test (DST) was examined in 119 in-patients suffering from a major depressive disorder and in 79 normal controls. Only 11 per cent of controls showed an abnormal DST as against 70 per cent of depressed patients. The specificity of the DST was examined by testing patients with other(More)
The concentration of kynurenine in plasma from depressed patients and control subjects has been measured using a sensitive and specific method. The levels of kynurenine in the plasma of depressed patients and controls are not significantly different and are not influenced by age or sex. The severity of affective disturbance was not related to plasma(More)
Pramipexole, a D2/D3 dopamine receptor agonist, has been implicated in the development of impulse control disorders in patients with Parkinson's disease. Investigation of single doses of pramipexole in healthy participants in reward-based learning tasks has shown inhibition of the neural processing of reward, presumptively through stimulation of dopamine(More)
When touching and viewing a moving surface our visual and somatosensory systems receive congruent spatiotemporal input. Behavioral studies have shown that motion congruence facilitates interplay between visual and tactile stimuli, but the neural mechanisms underlying this interplay are not well understood. Neural oscillations play a role in motion(More)
Treponema pallidum infections can have severe complications if not diagnosed and treated at an early stage. Screening and diagnosis of syphilis require assays with high specificity and sensitivity. The Elecsys Syphilis assay is an automated treponemal immunoassay for the detection of antibodies against T. pallidum The performance of this assay was(More)
Many electronic devices that we use in our daily lives provide inputs that need to be processed and integrated by our senses. For instance, ringing, vibrating, and flashing indicate incoming calls and messages in smartphones. Whether the presentation of multiple smartphone stimuli simultaneously provides an advantage over the processing of the same stimuli(More)
The 1 mg dexamethasone suppression test (DST) was carried out in patients with a major depressive illness in order to establish whether the results of this test, given before antidepressant or ECT treatment, could predict eventual therapeutic outcome. No significant difference could be detected in overall therapeutic improvement between those patients with(More)
The dexamethasone suppression test (DST) was carried out on 143 patients with a major depressive disorder, who were classified into those with a history of weight loss (n = 89) and those without (n = 54). Seventy-three per cent of patients with weight loss and 61% of patients without had an abnormal DST; this difference was not statistically significant. Of(More)