Phillip G. Harris

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The steady state visually evoked potential (SSVEP) elicited by a diffuse 13-Hz visual flicker was recorded from 64 scalp sites in 30 subjects performing a low and high demand version of an object working memory task. During the perceptual component of the task, the SSVEP amplitude was reduced at left and right parieto-occipital sites. During the hold or(More)
Converging evidence from event-related potential and functional brain imaging studies suggests that the brain activity at posterior regions of the frontal cortex can predict the strength of long-term memory traces. This study examined the relationship between posterior frontal steady-state visually evoked potential (SSVEP) latency changes and recognition(More)
OBJECTIVES To examine the latency topography of the steady-state visually evoked potential (SSVEP) in patients diagnosed with schizophrenia and normal controls while undertaking a visual vigilance task. METHODS Twenty patients diagnosed with schizophrenia and 18 normal controls performed the A-X version of the continuous performance task (CPT A-X) where(More)
OBJECTIVES To document the transition to a totally one-stop (patient seen and treated in one appointment) wide-awake (local anaesthesia only) hand surgery service. DESIGN Retrospective review of 10 year service with detailed analysis of last 1000 cases including process and cost-effectiveness and efficiency analysis. SETTING Purpose-built CQC-certified(More)
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