Psychologically, we inhabit a 'specious present'
Psychological and neurological studies suggest that we do not perceive events moment-by-moment but rather integrate them into perceptual units of approximately 2 to 3 seconds duration. This results in successive events forming a perceptual unity that can be apprehended without recourse to memory.
This discovery bears on the philosophical debate about the 'specious present' - so called because it is a duration rather than an instant of time (see citation below). The evidence cited below indicates that our brains are incapable of perceiving a moment in time - at least in the sense of an infinitesimally short duration - even if such a thing existed.
CONTEXT(Help)
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The Arrow of Time  »The Arrow of Time 
The experience of time »The experience of time
Passage view components »Passage view components
Distinguished present moment? »Distinguished present moment?
What we perceive directly »What we perceive directly
Does the present have duration? »Does the present have duration?
Psychologically, we inhabit a 'specious present'
Brain doesn't work with instants »Brain doesn't work with instants
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