Front Hum Neurosci. 2021 Aug 12;15:715254. doi: 10.3389/fnhum.2021.715254. eCollection 2021.
Access to Procedural Memories After One Year: Evidence for Robust Memory Consolidation in Tourette Syndrome.
Frontiers in human neuroscience
Eszter Tóth-Fáber, Zsanett Tárnok, Ádám Takács, Karolina Janacsek, Dezső Németh
Affiliations
Affiliations
- Doctoral School of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary.
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary.
- Brain, Memory and Language Research Group, Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Budapest, Hungary.
- Vadaskert Child and Adolescent Psychiatry Hospital, Budapest, Hungary.
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine of the TU Dresden, Dresden, Germany.
- Centre of Thinking and Learning, Institute for Lifecourse Development, School of Human Sciences, Faculty of Education, Health and Human Sciences, University of Greenwich, London, United Kingdom.
- Lyon Neuroscience Research Center (CRNL), INSERM U1028, CNRS UMR 5292, Université de Lyon, Lyon, France.
PMID: 34475817
PMCID: PMC8407083 DOI: 10.3389/fnhum.2021.715254
Abstract
Tourette syndrome is a childhood-onset neurodevelopmental disorder characterized by motor and vocal tics. On the neural level, tics are thought to be related to the disturbances of the cortico-basal ganglia-thalamo-cortical loops, which also play an important role in procedural learning. Several studies have investigated the acquisition of procedural information and the access to established procedural information in TS. Based on these, the notion of procedural hyperfunctioning, i.e., enhanced procedural learning, has been proposed. However, one neglected area is the retention of acquired procedural information, especially following a long-term offline period. Here, we investigated the 5-hour and 1-year consolidation of two aspects of procedural memory, namely serial-order and probability-based information. Nineteen children with TS between the ages of 10 and 15 as well as 19 typically developing gender- and age-matched controls were tested on a visuomotor four-choice reaction time task that enables the simultaneous assessment of the two aspects. They were retested on the same task 5 hours and 1 year later without any practice in the offline periods. Both groups successfully acquired and retained the probability-based information both when tested 5 hours and then 1 year later, with comparable performance between the TS and control groups. Children with TS did not acquire the serial-order information during the learning phase; hence, retention could not be reliably tested. Our study showed evidence for short-term and long-term retention of one aspect of procedural memory, namely probability-based information in TS, whereas learning of serial-order information might be impaired in this disorder.
Copyright © 2021 Tóth-Fáber, Tárnok, Takács, Janacsek and Németh.
Keywords: Tourette syndrome; memory consolidation; procedural learning; sequence learning; statistical learning
Conflict of interest statement
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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