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P300

P300

A significant positive deflection in the EEG signal occurring around 300 ms post stimulus, linked to cognitive processes like attention and memory.

Oddball Paradigm

Presentations of repetitive stimuli occasionally interrupted by a deviant stimulus, used to study P300 components.

P3a and P3b

Components of P300 theory, where P3a is related to frontal attention mechanisms and P3b to temporal-parietal activity associated with attention and memory.

Amplitude and Latency

Amplitude is the difference between baseline voltage and the largest peak, while latency measures the speed of stimulus classification and evaluation.

Cognitive Processing

P300 is a marker for cognitive processing related to attention, reflecting the brain's response to surprising or novel events.

Variability Factors

Factors affecting P300 variability include circadian rhythms, age, intelligence, genetics, and neurotransmitter functions.

Executive Control

Inhibition, working memory, and cognitive flexibility are part of executive control, crucial for success in schools and can be assessed using P3 amplitude and latency.

Aerobic Exercise

Associated with increased P3 amplitude and faster P3 latency, potentially influencing attention and working memory resources in preadolescent children.