Kate J. Hayes

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Relationships of neuroleptic dosage and tardive dyskinesia with measures of attentional, information-processing, and psychophysiological dysfunctions in medicated chronic schizophrenics were explored by correlational and stepwise multiple-regression analysis. High neuroleptic dosage was found to be associated with increased reaction time, reduced span of(More)
The primary aim of this study was to determine whether there is an association between neuroleptic treatment and skin-conductance orienting response (SCOR) nonresponding in chronic schizophrenics. In a design adapted to this purpose, we were unable to demonstrate a relationship between neuroleptics and nonresponding. Although inability to prove the null(More)
We sought to determine the effect of neuroleptic treatment on thought disorder in chronic schizophrenics, using the Thought Disorder Index (TDI). We were able to demonstrate that high levels of thought disorder are found in chronic schizophrenic and schizoaffective patients, while in both bipolar patients and normal controls thought pathology is minimal.(More)
Research with schizophrenics is reviewed in the areas of the startle reflex, subject-initiated evoked potentials, and two-stimulus evoked potentials. A hypothesis of an early (pre-100 ms) information-processing deficit is posited and further refined by results presented from brain evoked potentials during a backward-masking experiment. The implications of(More)
BACKGROUND The impact of bronchiectasis on sedentary behaviour and physical activity is unknown. It is important to explore this to identify the need for physical activity interventions and how to tailor interventions to this patient population. We aimed to explore the patterns and correlates of sedentary behaviour and physical activity in bronchiectasis.(More)
1. A backward masking task with simultaneous measurement of topographically mapped evoked potentials was performed by normal, schizophrenic, and patient control subjects. 2. Behavioral results replicated previous studies demonstrating schizophrenic deficit and to a lesser extent patient control deficit in this task. 3. Two competing theories of (A) defects(More)