PREDICTION OF HUMAN SUBJECTIVE TIME PERCEPTION FROM FUNCTIONAL MAGNETIC RESONANCE IMAGING

• Grant number: 22/16182-0
• Support Opportunities: Scholarships in Brazil - Master
• Start date: April 01, 2023
• End date: September 30, 2024
• Field of knowledge: Interdisciplinary Subjects
• Principal Investigator: Carlos Ernesto Garrido Salmon
• Grantee: Erick Almeida de Souza
• Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

The perception of time is one of the essential components that make up the various characteristics of human perception and can be biased by different characteristics present ineveryday stimuli that cause substantial variations to real (clock) time.With the development of this project, we seek to replicate and expand the approaches adoptedin the study by Sherman et al. (2022) which, in short, evaluates the relationship between metrics ofsubjective perception of time and the content present in the brain activity extracted from the signal offunctional magnetic resonance imaging (fMRI) in an experiment in which 40participants watch silent videos to validate the hypothesis that subjective time prediction can be determined directly by changes in the content of perception. Besides thereplication study, we will also implement two new approaches regarding the choice of brain segmentation scheme and the prediction of the estimated duration of the videos from the pre-processed time-series corresponding to the participants' response interval in order to expandour anatomical-functional knowledge about the human perception of time. Our goalsare to assess the existence of new brain regions/networks relevant to this predictionand test the hypothesis that the estimated time can be predicted directly from the fMRI time-series.