Impaired Numerical Ability Affects Supra-Second Time Perception
-
1
UCL, Institute of Cognitive Neuroscience, United Kingdom
-
2
UCL, Wellcome Trust Centre for Neuroimaging, United Kingdom
It has been suggested that numerical and time processing rely on common
magnitude mechanisms, yet for time this commonality has mainly been
investigated in the sub-seconds rather than the supra-seconds time range.
However, supra-sec and not sub-sec timing involves operations such as
counting, subtracting and adding which are closer to the numerical domain.
Here we examined whether number processing can influence timing in the
supra-sec time range. Specifically, we tested supra-sec timing in adult
individuals with a developmental impairment in numerical processing
(dyscalculia), reasoning that supra-sec timing impairment co-occuring with
dyscalculia may be indicative of joint mechanisms of time and number
processing. Temporal estimation of supra-second durations (12s), nontemporal
difficulty-matched control task, as well as additional mathematical
abilities were measured in dyscalculics and in age-matched controls.
Dyscalculics were significantly impaired in supra-sec (12s) duration estimation
but not in the control task. Furthermore, supra-sec temporal ability positively
correlated with mathematical proficiency. These results suggest that numerical
processing and supra-sec temporal processing share common mechanisms.
We assume that this is not due to an impairment of a generic magnitude
mechanism or in the pacemaker of the internal clock function. Instead, we
hypothesize that counting, which seems inseparable from supra-sec timing
and is also innately impaired in dyscalculia, underlies and adversely affects
their supra-sec time perception performance.
Acknowledgements
This study was funded by Marie-Curie fellowship (S.G.-D.), a Royal Society Dorothy Hodgkin Fellowship, a Royal Society and a British Academy Grants (M.C.), and the Wellcome Trust (G.R.). We thank all the participants for their participation in this study.
Keywords:
Dyscalculia,
Time estimation,
Time discrimination,
Counting,
magnitude
Conference:
14th Rhythm Production and Perception Workshop Birmingham 11th - 13th September 2013, Birmingham, United Kingdom, 11 Sep - 13 Sep, 2013.
Presentation Type:
Poster Presentation
Topic:
Rhythm Production and Perception
Citation:
Gilaie-Dotan
S,
Rees
G,
Butterworth
B and
Cappelletti
M
(2013). Impaired Numerical Ability Affects Supra-Second Time Perception.
Conference Abstract:
14th Rhythm Production and Perception Workshop Birmingham 11th - 13th September 2013.
doi: 10.3389/conf.fnhum.2013.214.00008
Copyright:
The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers.
They are made available through the Frontiers publishing platform as a service to conference organizers and presenters.
The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated.
Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed.
For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions.
Received:
22 Jul 2013;
Published Online:
24 Sep 2013.
*
Correspondence:
Dr. Sharon Gilaie-Dotan, UCL, Institute of Cognitive Neuroscience, London, UK, WC1N 3AR, United Kingdom, shagido@gmail.com