Dionyssios Theofilou

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We recorded the magnetoencephalographic (MEG) signal from three subjects before, during and after eye movements cued to a tone, self-paced, awake and during rapid eye movement (REM) sleep. During sleep we recorded the MEG signal throughout the night together with electroencephalographic (EEG) and electromyographic (EMG) channels to construct a hypnogram.(More)
The magnetoencephalography (MEG) signal was recorded while subjects watched a video containing separate blocks of affective and cognitive advertisements and recalled slides extracted from the video a day later. An earlier behavioural study using the same video material showed that the affective advertisements were better recalled and that administration of(More)
In the cerebellar cortex, long-term depression (LTD) of synapses between parallel &bers (PF) and Purkinje neurons can spread to neighboring ones, independently of their activation by PF input. This spread of non-speci&c LTD around the activated synapses resembles how units are a3ected in the neighborhood of the winner in a Kohonen Network (KN). However in a(More)
The ability to process events in their temporal and sequential context is a fundamental skill made mandatory by constant interaction with a dynamic environment. Sequence learning studies have demonstrated that subjects exhibit detailed — and often implicit — sensitivity to the sequential structure of streams of stimuli. Current connectionist models of(More)
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