RELATIVISTIC COMPRESSION AND EXPANSION OF EXPERIENTIAL TIME IN THE LEFT AND RIGHT SPACE

Massimiliano Oliveri, Patrizia Turriziani, Carlo Caltagirone, Giacomo Koch, Carmelo Mario Vicario, Massimiliano Oliveri

Research output: Contribution to journalArticlepeer-review

118 Citations (Scopus)

Abstract

Time space and numbers are closely linked in the physical world. However, the relativistic like effects on time perception of spatial and magnitude factors remain poorly investigated. Here we wanted to investigate whether duration judgments of digit visual stimuli are biased depending on the side of space where the stimuli are presented and on the magnitude of the stimulus itself. Different groups of healthy subjects performed duration judgments tasks on various types of visual stimuli. In the first two experiments visual stimuli were constituted by digit pairs (1 and 9), presented in the centre of the screen or in the right and left space. In a third experiment visual stimuli were constituted by black circles. The duration of the reference stimulus was fixed at 300 ms. Subjects had to indicate the relative duration of the test stimulus compared with the reference one. The main results showed that, regardless of digit magnitude, duration of stimuli presented in the left hemispace is understimated and that of stimuli presented in the right hemispace is overestimated. On the other hand, in medline position, duration judgements are effected by the numerical magnitude of the presented stimulus, with time understimation of stimuli of low magnitude and time overestimation of stimuli of high magnitude. These results argue for the presence of strict interactions between space, time and magnitude representation on the human brain
Original languageEnglish
Pages (from-to)E1716-E1720
Number of pages5
JournalPLoS One
Volume3
Publication statusPublished - 2008

All Science Journal Classification (ASJC) codes

  • General Biochemistry,Genetics and Molecular Biology
  • General Agricultural and Biological Sciences
  • General

Fingerprint

Dive into the research topics of 'RELATIVISTIC COMPRESSION AND EXPANSION OF EXPERIENTIAL TIME IN THE LEFT AND RIGHT SPACE'. Together they form a unique fingerprint.

Cite this