P300: a cognitive evaluation tool in acute ischemic stroke: a narrative review

ABSTRACT

Cognition is the scientific term for mental processes. These processes include attention, memory, problem solving, making decisions, producing and understanding language. This cognitive function is altered by various conditions like brain damage, ageing etc. Stroke is one of the main cause of cognitive impairment with an incidence ranging between 12 and 56% of affected population. P 300 is a long latency endogenous evoked potential. And it is referred to as cognitive evoked potential or event related potentials. P 300 is a wave form appears about 300ms following task - related endogenous stimuli which require attention and patients cooperation. The P 300 reflects processes related to attention, decision - making and memory updating. Research design: Narrative Review. EEG apparatus, event related potential P 300 wave form. In general, exercise improves the cognitive function. Various types of subjective measures available to assess the cognitive function but there is no direct reliable measure to asses cognitive function in patients. There is a need to find the scientific way of measuring cognitive function. In this review, a neurophysiological measure P 300 is explained to measure the cognitive function improvement after physical therapy management in stroke. P 300 will be a novel way of measuring cognitive function improvement after physical therapy management in stroke