Hemispheric lateralization in reasoning

2015 ◽  
Vol 1359 (1) ◽  
pp. 47-64 ◽  
Author(s):  
Benjamin O. Turner ◽  
Nicole Marinsek ◽  
Emily Ryhal ◽  
Michael B. Miller
Keyword(s):  
Hemispheric Lateralization

Hemispheric Lateralization of Sound

2012 ◽  
Author(s):  
Lauren Kolker ◽  
Lesley Hathorn
Keyword(s):  
Hemispheric Lateralization

Hemispheric lateralization in preattentive processing of speech sounds

1998 ◽  
Vol 258 (1) ◽  
pp. 9-12 ◽  
Author(s):  
Kimmo Alho ◽  
John F. Connolly ◽  
Marie Cheour ◽  
Anne Lehtokoski ◽  
Minna Huotilainen ◽  
...  
Keyword(s):  
Hemispheric Lateralization ◽  
Speech Sounds ◽  
Preattentive Processing

scholarly journals Improvement of phonemic fluency following leftward prism adaptation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Patrizia Turriziani ◽  
Gabriele Chiaramonte ◽  
Giuseppa Renata Mangano ◽  
Rosario Emanuele Bonaventura ◽  
Daniela Smirni ◽  
...  
Keyword(s):  
Healthy Subjects ◽  
Clinical Impact ◽  
Language Ability ◽  
Prism Adaptation ◽  
Hemispheric Lateralization ◽  
Functional Studies ◽  
Phonemic Fluency ◽  
Executive Dysfunctions ◽  
New Strategies ◽  
Fluency Task

AbstractAnatomo functional studies of prism adaptation (PA) have been shown to modulate a brain frontal-parieto-temporal network, increasing activation of this network in the hemisphere ipsilateral to the side of prism deviation. This effect raises the hypothesis that left prism adaptation, modulating frontal areas of the left hemisphere, could modify subjects’ performance on linguistic tasks that map on those areas. To test this hypothesis, 51 healthy subjects participated in experiments in which leftward or rightward prism adaptation were applied before the execution of a phonemic fluency task, i.e., a task with strict left hemispheric lateralization onto frontal areas. Results showed that leftward PA significantly increased the number of words produced whereas rightward PA did not significantly modulate phonemic fluency. The present findings document modulation of a language ability following prism adaptation. The results could have a huge clinical impact in neurological populations, opening new strategies of intervention for language and executive dysfunctions.

scholarly journals Functional Near-Infrared Spectroscopy for the Classification of Motor-Related Brain Activity on the Sensor-Level

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2362 ◽  
Author(s):  
Alexander E. Hramov ◽  
Vadim Grubov ◽  
Artem Badarin ◽  
Vladimir A. Maksimenko ◽  
Alexander N. Pisarchik
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
High Efficiency ◽  
Brain Activity ◽  
Blood Oxygenation ◽  
Hemispheric Lateralization ◽  
Motor Execution ◽  
Functional Near Infrared Spectroscopy

Sensor-level human brain activity is studied during real and imaginary motor execution using functional near-infrared spectroscopy (fNIRS). Blood oxygenation and deoxygenation spatial dynamics exhibit pronounced hemispheric lateralization when performing motor tasks with the left and right hands. This fact allowed us to reveal biomarkers of hemodynamical response of the motor cortex on the motor execution, and use them for designing a sensing method for classification of the type of movement. The recognition accuracy of real movements is close to 100%, while the classification accuracy of imaginary movements is lower but quite high (at the level of 90%). The advantage of the proposed method is its ability to classify real and imaginary movements with sufficiently high efficiency without the need for recalculating parameters. The proposed system can serve as a sensor of motor activity to be used for neurorehabilitation after severe brain injuries, including traumas and strokes.

scholarly journals Interindividual variability and lateralization of µ-opioid receptors in the human brain

2019 ◽  
Author(s):  
Tatu Kantonen ◽  
Tomi Karjalainen ◽  
Janne Isojärvi ◽  
Pirjo Nuutila ◽  
Jouni Tuisku ◽  
...  
Keyword(s):  
Psychiatric Disorders ◽  
Body Mass ◽  
Opioid Receptors ◽  
Hierarchical Modeling ◽  
Small Sample ◽  
Hemispheric Lateralization ◽  
Binding Potential ◽  
Neuropsychiatric Diseases ◽  
Age Dependent

AbstractThe brain’s µ-opioid receptors (MORs) are involved in analgesia, reward and mood regulation. Several neuropsychiatric diseases have been associated with dysfunctional MOR system, and there is also considerable variation in receptor density among healthy individuals. Sex, age, body mass and smoking have been proposed to influence the MOR system, but due to small sample sizes the magnitude of their influence remains inconclusive. Here we quantified in vivo MOR availability in the brains of 204 individuals with no neurologic or psychiatric disorders using positron emission tomography (PET) with tracer [11C]carfentanil. We then used Bayesian hierarchical modeling to estimate the effects of sex, age, body mass index (BMI) and smoking on [11C]carfentanil binding potential. We also examined hemispheric lateralization of MOR availability. Age had regionally specific effects on MOR availability, with age-dependent increase in frontotemporal areas but decrease in amygdala, thalamus, and nucleus accumbens. The age-dependent increase was stronger in males. MOR availability was globally lowered in smokers but independent of BMI. Finally, MOR availability was higher in the right versus the left hemisphere. The presently observed variation in MOR availability may explain why some individuals are prone to develop MOR-linked pathological states, such as chronic pain or psychiatric disorders.

The impact of transparency on hemispheric lateralization of idiom comprehension: An rTMS study

2021 ◽  
pp. 108062
Author(s):  
Hazel Zeynep Kurada ◽  
Elif Arıca-Akkök ◽  
Zerin Özaydın-Aksun ◽  
H. Özden Şener ◽  
Michal Lavidor
Keyword(s):  
Hemispheric Lateralization ◽  
Idiom Comprehension ◽  
The Impact
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