“Time expansion”: our perception of time has slowed down

Time Space Cosmos Concept
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Time space cosmos concept

How the pandemic and social isolation have altered the way we perceive the passage of time.

In the early stages of the epidemic, most of those who were confined to their homes said that they felt that time was slowing down and that they felt lonely as a result.

According to a report in the magazine Progress of science, the[{” attribute=””>COVID-19 pandemic has altered how individuals perceive the passing of time.

The majority of research participants (65%) reported feeling that time was moving more slowly at the conclusion of the first month of social isolation, which occurred in May 2020. This perception was termed by the researchers as “time expansion,” and they discovered that it was linked to feelings of isolation and a lack of enjoyable activities throughout the time period.

Even more people (75%) said they didn’t experience as much “time pressure,” which is the sensation that time is passing more quickly and leaving less time for activities of daily living and recreation. 90% of those surveyed claimed they were taking shelter at home during that time.

“We followed the volunteers for five months to see if this ‘snapshot’ of the start of the pandemic would change over time. We found that the feeling of time expansion diminished as the weeks went by, but we didn’t detect significant differences with regard to time pressure,” André Cravo, first author of the article, told Agência FAPESP. Cravo is a professor at the Federal University of ABC in São Paulo state, Brazil.

The research started on May 6, when 3,855 participants recruited via social media responded to a ten-item online questionnaire and completed a simple task meant to test their ability for short interval estimation (pressing start and stop buttons in 1, 3, and 12 seconds). They were then questioned about their daily activities the week before (including whether they had finished all required tasks and how much time they had set aside for leisure) as well as how they were feeling right now (happy, sad, lonely, etc).

“They were invited to return every week for further sessions, but not everyone did,” Cravo said. “In the final analysis, we considered data for 900 participants who answered the questionnaire for at least four weeks, albeit not all consecutively.”

Using time awareness scales from 0 to 100 that are standard for this type of survey, the researchers analyzed the answers and calculated the two parameters – time expansion and time pressure – to see whether they increased or decreased week by week.

“Besides a rise or fall on the scales, we also analyzed the factors that accompanied the changes. During the five-month period, we observed a similar pattern: in weeks when participants reported feeling lonely and experiencing less positive affect, they also felt time pass more slowly. In highly stressful situations, they felt time pass more quickly,” Cravo said.

When the first set of answers to the question on the passage of time was compared with the second, provided at the end of the first month of confinement, perceptions of time expansion had risen 20 points while time pressure had fallen 30 points, according to Raymundo Machado, a scientist at the Brain Institute of the Albert Einstein Jewish Hospital (HIAE) in São Paulo, and last author of the article. “These results are evidently affected by memory bias, however, because no measurements were made before the pandemic,” he said.

Time slowed most for younger participants early in the pandemic, when compliance with social distancing rules was strictest. Except for age, demographic factors such as household size, occupation, and gender, had no influence on the results.

For the authors, this may be an effect of the sample profile. Most of the volunteers (80.5%) lived in the Southeast region. A large majority were women (74.32%). Most had completed secondary school, and a great many even had a university degree (71.78%). In terms of income, roughly a third were upper middle class (33.08%). Sizable minorities worked in education (19.43%) and healthcare (15.36%).

“This is typical of online surveys, where a majority are women living in the Southeast with high levels of formal education. The influence of demographics might have been more evident if the sample had represented the Brazilian population better,” Machado said.

Internal clock

Although the pandemic changed participants’ perceptions of the passage of time, it apparently did not affect their ability to sense duration, measured by the button-pressing task. “All of us are able to estimate short intervals. When the results of this time estimation test [including overestimation and underestimation of the intervals] were compared to time awareness scores, there was no correlation,” Machado said.

According to Cravo, evidence from the scientific literature suggests that the sensation of time passing slower or faster is mainly influenced by two factors: the relevance of time in a particular context and unpredictability. For example, if you are late for work [so that time is relevant in the context] and I have to wait for a bus [unpredictable timing], you have an extreme perception that the minutes do not pass. When you are on vacation and having fun, time is not relevant and it seems to fly by,” she said.

Perception often changes when we remember past situations. “When you remember what you did on vacation, time seems to have lasted longer. Conversely, when you’re standing in line, time passes too slowly, but when you look back on the situation later, it seems like it’s all over quickly,” Cravo said.

In the case of the COVID-19 pandemic, it is unknown how people will remember the passage of time during the period of social distancing. “Several temporary milestones, such as Carnival, June parties and birthdays, had to be skipped in the last two years, so the question remains open,” he concluded.

Reference: “Time experience during social distancing: a longitudinal study during the first months of the COVID-19 pandemic in Brazil” by André Mascioli Cravo, Gustavo Brito de Azevedo, Cristiano Moraes Bilacchi Azarias, Louise Catheryne Barne, Fernanda Dantas Bueno , Raphael Y. de Camargo, Vanessa Carneiro Morita, Esaú Ventura Pupo Sirius, Renan Schiavolin Recio, Mateus Silvestrin and Raymundo Machado de Azevedo Neto, April 13, 2022, Progress of science.
DOI: 10.1126/sciadv.abj7205

The study was funded by FAPESP.

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