Separating predictive responses from reactive responses in isochronous finger tapping using Bayesian hierarchical modeling

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding

Abstract

Finger tapping to isochronous pacing stimuli is a well established experimental paradigm first described in the late 19th century. Two variables of common interest in rhythmic tapping tasks are timing variability and constant error. However, a difficulty when estimating these variables is that at interstimulus intervals longer than 2 seconds participants regularly overshoot the target interval and instead react to the pacing stimulus. These reactive responses result in a left skewed, non-normal response distribution, which can lead to underestimation of both the constant error and timing variability when using classical moment estimators such as the sample mean and standard deviation. A Bayesian hierarchical model is presented that models the timing responses as coming from a right censored normal distribution. Comparing this model with classical estimators using both simulated and experimental data shows that the Bayesian model measures timing variability and constant error more accurately and with less bias.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Psykologi
  • Jämförande språkvetenskap och lingvistik
  • Datorseende och robotik (autonoma system)

Nyckelord

Originalspråkengelska
Titel på värdpublikationProceedings of the 29th Annual Meeting of the International Society for Psychophysics
RedaktörerJ. Wackermann, M. Wittman, W. Skrandies
FörlagThe International Society for Psychophysics
Sidor72-72
Antal sidor1
Volym29
StatusPublished - 2013
PublikationskategoriForskning
Peer review utfördJa
EvenemangFechner Day 2013 - Freiburg, Tyskland
Varaktighet: 2013 okt 22 → …

Publikationsserier

Namn
Volym29

Konferens

KonferensFechner Day 2013
LandTyskland
OrtFreiburg
Period2013/10/22 → …