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332

Title *

Cerebral laterality as assessed by functional transcranial Doppler ultrasound in left-and right-handers: A comparison between handwriting and writing using a smartphoneuse asterix (*) to get italics

Authors *

Christos Samsouris, Nicholas A. Badcock, Filippos Vlachos, Marietta Papadatou-PastouPlease use the format "First name initials family name" as in "Marie S. Curie, Niels H. D. Bohr, Albert Einstein, John R. R. Tolkien, Donna T. Strickland"

Year *

2023

Picture

Abstract *

<p>Neuroscientific studies of traditional handwriting have revealed a left cerebral lateralization pattern for written language production, with distinct patterns between left- and right-handers. However, no study to date has investigated the cerebral lateralization of writing using a smartphone. Studying writing using a smartphone is important as more than 6 and a half billion mobile phone subscriptions were in place in 2022. In this pre-registration we present a forthcoming study which aims to compare the cerebral lateralization of handwriting and writing using a smartphone, and examine the effects of handedness. We will use functional trans-cranial Doppler ultrasound (fTCD), which allows for reliable measurements of cerebral laterality during written language. Our initial sample will be n = 40 participants (20 left-handers and 20 right-handers), with a maximum of n = 80 (40 per group) following the Sequential Bayesian Factor (SBF) with Maximal n design. We hypothesize that there will be no difference in the cerebral lateralization between handwriting and writing using a smartphone after controlling for motor activity. We also hypothesize that left-handers will exhibit a weaker left-hemispheric lateralization when compared to right-handers for the linguistic part of writing using a smartphone. Findings will highlight the neural mechanisms underlying language production using novel technologies.</p>

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Keywords (optional)

cerebral language lateralization, functional transcranial Doppler ultrasound (fTCD), writing, smartphone typing, handedness

Methods that require specific expertise (optional)

NonePlease indicate the methods that may require specialised expertise during the peer review process (use a comma to separate various required expertises).

Thematic fields *

Life Sciences, Social sciences

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Submission date

2022-11-01 10:27:39

Recommender

D. Samuel Schwarzkopf

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