How long is the present? The answer, Cornell researchers suggest in a new study, depends on your heart. The researchers discovered that our moment-to-moment perception of time is not constant and can expand or contract with each heartbeat. According to Adam K. Anderson, a professor in the Depa
The findings suggest a unique role of cardiac dynamics in the momentary experience of time.
According to Adam K. Anderson, a professor in the Department of Psychology and College of Human Ecology, the research provides further evidence supporting the idea that the heart is one of the brain’s key timekeepers and has a fundamental impact on our perception of the passing of time. This is an idea that has been pondered since ancient times.
Time perception typically has been tested over longer intervals, when research has shown that thoughts and emotions may distort our sense time, perhaps making it fly or crawl. Sadeghi and Anderson recently reported, for example,Such findings, Anderson said, tend to reflect how we think about or estimate time, rather than our direct experience of it in the present moment.
The results revealed what the researchers called “temporal wrinkles.” When the heartbeat preceding a tone was shorter, the tone was perceived as longer. When the preceding heartbeat was longer, the sound’s duration seemed shorter. “The heartbeat is a rhythm that our brain is using to give us our sense of time passing,” Anderson said. “And that is not linear – it is constantly contracting and expanding.”
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