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)
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)
In the cerebellar cortex, long-term depression (LTD) of synapses between parallel ÿbers (PF) and Purkinje neurons can spread to neighboring ones, independently of their activation by PF input. This spread of non-speciÿc LTD around the activated synapses resembles how units are aaected in the neighborhood of the winner in a Kohonen Network (KN). However in a(More)
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