Retentional models allow what is perceived as occurring at t to vary across different specious presents, so a spot of light can be perceived as stationary in specious present S1 and as moving in a later specious present S2.
specious present(Retentionalist theory of time-consciousness)
A unit of conscious temporal experience that encompasses an apparent duration (e.g., roughly one second), within which change and succession are phenomenally present
Coming from a very different direction, Grush has argued (2005b, 2006, 2007, 2016) that Retentional models have a distinct advantage over Extensional models when it comes to accommodating certain ‘temporal illusions’. The relevant category of cases are those where a stimuli occurring later than a time t affects the character of what is perceived as occurring at t itself; the so-called flash-lag effect and the phi-phenomenon fall into this category. These instances of (apparent) retro-active caus