In our everyday experience time is continuous and
chronological. In stories we can jump around in time. Just as with many other
things, Aristotle had already given this discrepancy thought.
In his Poetics he
declared that historians are to provide a blow-by-blow chronological account of
events. Authors of fiction, on the other hand, are not bound by this directive.
For them, plot is the constraining factor. If the plot calls for a jump ahead
in time, the author should do so. No need for a detailed account of
Odysseus’ daily bowel movements during the seven years that he was ensnared by
Calypso.
Time shifts are extremely common in stories. For example,
we often encounter phrases like an hour later, which force us to jump
an hour forward in time from one sentence to the next. But how do we process such time shifts?
Cognitive psychologists have begun to address this question.
An early example is here.
In a study
published in 1996, I compared time shifts like an hour later to non-time shifts such as a moment later.
There were three main findings.
· Reading times for hour shifts are longer than for moment
shifts.
·
After an hour
shift, information before shift is less accessible to the reader than after
a moment
shift.
·
Events separated by a moment are more strongly connected in long-term memory than events
separated by an hour.
So it looks like time shifts act as separators between
events. We deactivate information that comes before the time shift and (possibly as a result) events separated by the time shift become separated in long-term memory; furthermore, processing time shifts is resource consuming (takes time).
In a later
paper, we found that a similar deactivation occurs when it is explicitly
stated that an action is discontinued. For instance, people respond more slowly
to the word playing after He stopped playing the piano than after He was playing the piano despite the
fact that they just read the word playing.
Apparently we don’t represent information in a form that
resembles the text but rather in
a form that is close to the described situation. The time shift or explicit
discontinuation forms as some sort of mental barrier to what has happened
before.
In my 1996 paper, I examined these questions using a couple
dozen short stories. The story I use as an example in the paper and in talks
involves a gallery owner named Maurice. I pictured him as an overly sensitive
dandy. I thought the name Maurice was a good fit (with apologies to everyone named
Maurice). I kind of suspect that Nathan Lane’s role of Pepper Salts in the hit
show Modern Family is based on
the Maurice character.
Anyhow, after a 17-year hiatus, Maurice makes a comeback in a recent
paper by Weingartner and Myers. The authors adapted the Maurice story (and
other stories from the 1996 paper). Again, Maurice has a grand opening of his
art gallery but this time things go better for him than in the original story
(where he’d forgotten to invite the local art critic, to his own detriment).
That’s reassuring to know. But what about the findings?
Like the 1996 study and other studies, Weingartner and
Myers find that time shifts lead to increases in processing times. They measured eye fixations whereas the earlier studies used key presses, so this is an extension of those earlier findings.
The authors also find that reading times for time shifts are
longer after a discontinuation (Maurice stopped doing something) than after a continuation.
Because there is no interaction between time shift and discontinuation, their
effects appear to be additive. So it takes extra long to read what happened an
hour later after someone discontinued doing something.
But Weingartner and Myers also find that time shifts
might be what I’ll call “semi-permeable,” letting through some information but
not other. For example, if the story made reference to something before the
time shift, the reading times for this anaphor did not vary as a function of
time shift. Apparently, the information was equally available after a moment or
hour of story time.
This is different from the earlier studies, which found that
information was less available after an hour of story time than after a moment.
But what was also different was the method. The earlier studies used a
probe-recognition task. A word was presented and the subjects had to indicate
whether or not it had occurred in the text. Weingartner and Myers only used
reading times.
In a second experiment, therefore, they used a probe
recognition task. Responses were significantly slower after a discontinuation
than after a continuation, replicating our 2000 findings but there was no
effect of time shift, not replicating the 1996 findings (as well as other
findings).
The authors point out that there is a potentially
critical difference with the 1996 study. In that study, the probe words were
actions, which have a fleeting nature. In the current study, the probes were
nouns, which referred to stable entities in the situation. A 2010
study by Radvansky and Copeland had found earlier that time shifts led to
deactivation of activities but not entities.
So maybe time shifts are semi-permeable, letting through
stable situational elements but not more ephemeral ones. Explicit
discontinuations apparently are not permeable. This helps constrain models of
discourse comprehension.
As the authors note in conclusion: Much remains to be done. I agree. I have therefore decided to take
this topic back up again. The Maurice saga continues…
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