Precise Temporal P300 Detection in Brain Computer Interface EEG Signals Using a Long-Short Term Memory

Oliva, Christian; Changoluisa, Vinicio; Rodrı́guez, Francisco; Lago-Fernández, Luis F.

doi:10.1007/978-3-030-86380-7_37

Cited by 3 publications

(1 citation statement)

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“…The P300 wave has been associated with a range of cognitive processes, including decision-making 26 , memory [27][28][29] , orienting 30 , and response selection processes when target stimuli need to be discriminated from non-target stimuli 31 . The target selection process is an attention-driven process that involves working memory since participants are required to remember and constantly compare the current stimulus with the target stimulus 32 .…”

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confidence: 99%

Cognitive load associates prolonged P300 latency during target stimulus processing in individuals with mild cognitive impairment

Demirayak,

Kıyı,

İşbitiren

et al. 2023

Sci Rep

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Alterations in P300 amplitude and latency, as well as neuropsychological tests, are informative to detect early signs of the affected high cognitive processing in Mild Cognitive Impairment (MCI). In the present study, we examined P300 latency and amplitude elicited by visual oddball paradigm in 20 participants with MCI and age, education, and sex-matched healthy controls from frontal, central, and parietal midline electrodes. We performed a mixed-design ANOVA to compare P300 amplitude and latency between groups during target and non-target stimulus presentation. We also assessed the correlation between our electrophysiology findings and neuropsychological tests. Our results indicated that in healthy individuals P300 is elicited earlier in target stimulus processing compared to non-target stimulus processing. On the contrary, in the MCI group, P300 latency was increased during target processing compared to non-target stimulus processing. Moreover, P300 latency in target processing is prolonged in the MCI group compared to controls. Also, our correlation results showed a significant correlation between P300 peak latency and amplitude, and attention required cognitive tasks. In conclusion, our results provide evidence that high-order cognitive processes that are involved in stimulus processing slows down in individuals with MCI due to the high working memory demand for neural processing.

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