Not a lot is said directly in the article about focus.

The essence of the human perception of time is focus. To identify and choose those external stimuli which are relevant to the situation pertaining at any particular time. To identify the rate of change of the most salient stimuli and organise the response of the body and brain to those stimuli. Different filters must be clicked in to exclude irrelevant stimuli.

Thus exciting events may be perceived more slowly because unnecessary detail is removed from the perception of the event itself. When the event occurrs more time is available to concentrate upon the salient feature of the event and so respond to it.

Thus the missing phrase in the above article is 'a priori'.

Our a priori perception allows us to focus upon particular events. - the brain effectively having an inbuilt lens for detail.

More time is thus available to focus upon relevant detail in any particular circumstance.

Also when recalling such memory our a priori conceptuality predisposes us to know that in the actual reality of the exciting event we existed in the same way in detail and temporaly as we do when we are subsequently recalling the event. However because during the event we had filtered out much of the normal apriori world that existed before and after the event we 'feel' that the actual timing of the event was slower than in the normal a priori world because during recall we would have to overlay the normal a priori rate of things so as to coordinate the memory with the current conditions of recall.

Thus also the thought of time as a 'feeling' is missing from the article.

This idea is central to Damasios theory of consciousness - that time exists in consciousness and thus is in essence a feeling.