Reliable applications of affective brain-computer interfaces (aBCI) in realistic, multi-modal environments require a detailed understanding of the processes involved in emotions. To explore the modalityspecific nature of affective responses, we studied neurophysiological responses (i.e., EEG) of 24 participants during visual, auditory, and audiovisual affect stimulation. The affect induction pr...

After Paul Broca localized the area responsible for producing speech in posterior region of left frontal lobe, John Hurling Jackson provided evidence showing presence different mental functions right and cerebral hemispheres. His theory was confirmed by discovery sensory language Carl Wernicke. Eduard Hitzig Gustav Fritsch identified motor cortex electrical stimulation. David Ferrier also used ...

Flicker stimuli of variable frequency (2-90 Hz) elicit a steady-state visual-evoked response (SSVER) in the electroencephalogram (EEG) with the same frequency as the stimulus. In humans, the amplitude of this response peaks at approximately 15 Hz, decreasing at higher stimulation frequencies. It was not known whether this peak response corresponds to increased synaptic activity in the visual co...

Abstract Background: Previous studies have mainly demonstrated the overall effect of transcranial direct current stimulation (tDCS) on working memory (WM). However, segregative effects offline and online tDCS over left dorsolateral prefrontal cortex (dlPFC) subtypes within WM are still under debate. Here, present research explores that one session anodal dlPFC has potential to improve different...

PURPOSE TDCS can increase excitability in the visual cortex. It is a matter of current debate if tDCS can improve visual performance. Promising parameters to measure detection sensitivity may be those of the signal detection theory ( = SDT), as it allows differentiating between response bias and detection sensitivity changes. The measure of detection sensitivity can be used to predict actual pe...

Is it possible to passively induce visual learning/unlearning in humans for complex stimuli such as faces? We addressed this question in a series of behavioral studies using passive visual stimulation (flickering of faces at specific temporal frequencies) inspired by well-known synaptic mechanisms of learning: long-term potentiation (LTP) vs long-term depression (LTD). We administered a face id...