Activation levels, EEG, and behavioural responses.

摘要: Fifteen male alcoholic patients, who were divided into 3 different groups and treated for weeks with placebo, phenobarbital or diazepam, examined once a week in states of activation, varying from relaxation to moderate high demand attention. Frequency-analyzed EEG recording, pulse rate, drug plasma levels, mood performance evaluated. The aim this paper was find an explanation the responding correctly non-adequate way stimuli. Based on activation theory vigilant behaviour, recordings first examination analyzed before, during after presentation specific stimuli related 4 types responses (hit, miss, false response, correct rejection) ascertain whether prestimulus patterns connected behavioural poststimulus responses. found be dependent type administered as well complexity task performed. In all treatment groups, low changes before stimulus onset seemed necessary condition adequate A variability between time-points indicate subvigilant state which led possibly internally induced vigilance test overcome state. stress phase, however, missed due selective attention simultaneously appearing non-relevant conclusion must drawn that, at least patients acute withdrawal prior plays decisive role determining emerging response: differential is response-specific, whereas actual power values depend medication given