Search results for "psicobiologia"
showing 5 items of 285 documents
Transcranial Magnetic Stimulation Trains at 1 Hz Frequency of the Right Posterior Parietal Cortex Facilitate Recognition Memory
2021
Neuroimaging, neuropsychological, and brain stimulation studies have led to contrasting findings regarding the potential roles of the lateral parietal lobe in episodic memory. Studies using brain stimulation methods reported in the literature do not offer unequivocal findings on the interactions with stimulation location (left vs. right hemisphere) or timing of the stimulation (encoding vs. retrieval). To address these issues, active and sham 1 Hz repetitive transcranial magnetic stimulation (rTMS) trains of 600 stimuli were applied over the right or left posterior parietal cortex (PPC) before the encoding or before the retrieval phase of a recognition memory task of unknown faces in a grou…
Prismatic adaptation modulates oscillatory EEG correlates of motor preparation but not visual attention in healthy participants
2018
Prismatic adaption (PA) has been proposed as a tool to induce neural plasticity and is used to help neglect rehabilitation. It leads to a recalibration of visuo-motor coordination during pointing as well as to after-effects on a number of sensorimotor and attention tasks, but whether these effects originate at a motor or attentional level remains a matter of debate. Our aim was to further characterise PA after-effects by using an approach that allows distinguishing between effects on attentional and motor processes. We recorded electroencephalography (EEG) in healthy human participants (9 females and 7 males) while performing a new double step, anticipatory attention/motor preparation parad…
Does predictability matter? Effects of cue predictability on neurocognitive mechanisms underlying prospective memory
2015
Prospective memory (PM) represents the ability to successfully realize intentions when the appropriate moment or cue occurs. In this study, we used event-related potentials (ERPs) to explore the impact of cue predictability on the cognitive and neural mechanisms supporting PM. Participants performed an ongoing task and, simultaneously, had to remember to execute a pre-specified action when they encountered the PM cues. The occurrence of the PM cues was predictable (being signalled by a warning cue) for some participants and was completely unpredictable for others. In the predictable cue condition, the behavioural and ERP correlates of strategic monitoring were observed mainly in the ongoing…
Il ruolo della corteccia prefrontale dorsolaterale nella memoria di riconoscimento: uso dellla Stimolazione Magnetica Transcranica per il trattamento…
Il ruolo della corteccia prefrontale dorsolaterale (DLPFC) in compiti di memoria è stato largamente documentato. Una questione ancora molto dibattuta è il grado di lateralizzazione anatomica-funzionale dei processi di controllo esecutivo della DLPFC coinvolti nella memoria di riconoscimento. Il lavoro di tesi indaga le connessioni tra DLPFC e ippocampo mediante l’applicazione di tecniche di neuromodulazione dell’eccitabilità della DLPFC che consentano di accrescere l’attività ippocampale durante compiti di memoria di riconoscimento. I primi tre studi valutano gli effetti inibitori ed eccitatori della rTMS applicata alla DLPFC sulla performance in compiti di memoria di riconoscimento, in div…