Perceiving numbers alters time perception

Massimiliano Oliveri, Patrizia Turriziani, Giuseppa Renata Mangano, Gaetana Chillemi, Carlo Caltagirone, Giacomo Koch, Carmelo Mario Vicario, Massimiliano Oliveri

Risultato della ricerca: Articlepeer review

115 Citazioni (Scopus)


The representation of time, space and numbers are strictly linked in the primate’s cognitive system. Herewe showthat merely looking at number symbols biases a temporal judgment on their duration dependingupon the number’s magnitude. In a first experiment, a group of healthy subjects was submitted to a timeestimation task, requiring to judge whether the duration of a test stimulus was longer or shorter thanthat of a previous reference fixed stimulus (digit 5; duration 300 ms). Test stimuli were the digits 1, 5and 9 ranging between 250 and 350 ms. The main results showed that temporal perception was biasedaccording to the magnitude expressed by the digit: low digits (i.e. 1) leading to underestimation and highdigits (i.e. 9) an overestimation of perceived duration. Control experiments showed that this result wasconsistent whatever digits were tested but not when letters of the alphabet were used. These findingsargue for a functional interaction between time and numbers in the cognitive system.
Lingua originaleEnglish
pagine (da-a)308-311
Numero di pagine4
RivistaNeuroscience Letters
Stato di pubblicazionePublished - 2008

All Science Journal Classification (ASJC) codes

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