Association of salivary alpha-amylase and salivary flow rate with working memory functioning in healthy children

Autor:	E. Maldonado, Alba Magarín, Laura López Marín, Ana Alamo, Silvia García, Mari Anneli Nislin, Ana Martínez-Escribano, Alfredo Enguix, Cristina López, Marina Muñoz, Paula Ortíz
Rok vydání:	2019
Předmět:	Male medicine.medical_specialty Future studies Physiology Audiology behavioral disciplines and activities 03 medical and health sciences Behavioral Neuroscience 0302 clinical medicine Statistical analyses Memory span Medicine Humans Association (psychology) Child Wechsler Intelligence Scale for Children Endocrine and Autonomic Systems business.industry Working memory Cognition Salivary flow rate 030227 psychiatry Psychiatry and Mental health Neuropsychology and Physiological Psychology Memory Short-Term Salivary alpha-Amylases Female business 030217 neurology & neurosurgery
Zdroj:	Stress (Amsterdam, Netherlands). 22(6)
ISSN:	1607-8888
Popis:	The aim of this study was to examine the association between auditory and visual working memory (WM) performance and salivary alpha-amylase (sAA) and salivary flow rate (SFR) in a sample of 63 children (38 boys). WM was assessed by means of WISC-V subtests: four auditory subtests (Digit Span and Letter-Number Sequencing) and one visual subtest (Picture Span). SAA activity, output, and SFR were measured at baseline (10 min prior to testing), one minute prior to testing, one minute after the end of the auditory WM subtests and one minute after the end of the visual WM subtest. Our statistical analyses showed an association among SAA activity, output and SFR levels and the number of recalled digits in the last attempt score in Letter-Number Sequencing subtest. Specifically, our results showed that working performance in this task was associated with a concurrent decrease in SFR (r(63) = -0.423, p < .05). This salivary measure was the best predictor of this specific index of working memory performance (β = -0.423, p < .05). These results show that the changes in SFR, which represents changes in parasympathetic tone, could be employed in future studies as a noninvasive marker of working memory performance in child studies.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bdccf0febf284b43d3084b58c12fa41 https://pubmed.ncbi.nlm.nih.gov/31084229 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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