Table 2.

Survey used to identify alterations in temporal awareness.

Temporal symptom	Questions
	Thinking about [her / his / your] activities most days, please indicate whether or not you feel there has been a clear increase in any of the following
Ordering past events	Confusion about the order in which personal events have happened
Estimating intervals between events	Difficulty estimating how long ago personal events occurred/how far in the future events will occur
Temporal rigidity	Intolerant of delays, anxiety or irritation about missing appointments or late arrivals, insistence on doing things at a particular time
Clockwatching	Tendency to “watch the clock” or preoccupation with the time
Re-living past events	Tendency to re-live personal events or episodes from the past

Survey symptom items were chosen based on clinical observations of target disease groups and informed by previous studies of temporal awareness in the healthy brain (see text). The questionnaire was completed by healthy control participants themselves and by patients' primary caregivers. Respondents were asked to indicate whether or not prominent changes (i.e., evident most days) had occurred, for each of the sampled symptoms of temporal awareness. Caregivers were asked to decide whether changes had occurred comparing patients' current behavior with their behavior when well; healthy controls were asked to decide if changes had occurred in their own behavior over the past 10 years.