Although repetition of equal time intervals (i.e. isochrony) is the central principle for predictive timing, this simple information is apparently used in a flexible and complex way that accommodates not only fractions and subdivisions of intervals, but also momentary [1] and gradual [10] changes of intervals.
This may have been due to the limited time interval between the momentary and retrospective reports: even for the first task, the momentary and retrospective assessment were typically no more than 25 minutes apart.
Momentary (but not for the interval between alarm cues) exposures to noise and air pollution are asked in a similar way.
New approaches involving intensive data collection with much shorter measurement intervals, such as Ecological Momentary Assessment, are promising, but are costly and are not suitable for every research question.
What goes for momentary primal impressions also goes for intervals: D-E is retained at F in the form of the retentional continuum E*-D**.
Again, only a few of the actual retentions are shown in the diagram: in reality there will be a retention corresponding to each of the momentary perceptual experiences you enjoyed during this brief interval.
It is constructed around acts of awareness that are themselves momentary, but which apprehend phenomenal contents distributed over a short interval of time; a stream of consciousness consists of dense sequences of such acts, with the consequence that the contents apprehended by neighbouring acts largely overlap.
Since on the Extensional model it takes an interval of time to experience change or succession, these momentary stream-phases will not contain any experience of change: their contents will be entirely static in character.
We see that the notion of (momentary) state is fundamental, while phase refers to a continuous time interval during which the momentary states are similar but not necessarily equal, for example by keeping some of the sub-states constant.
For all that Liverpool's equaliser came out of nothing, Torres taking advantage of momentary United indecision as only he can, significantly he turned provider just before the interval when his measured pass for Gerrard tempted Patrice Evra to take the player instead of the ball and concede a rare home penalty.
