Immature brain structures were associated were poorer eye movement performance at 8 years of age in preterm born children

2021 ◽  
Author(s):  
Maria Pia Bucci ◽  
Simona Caldani ◽  
Béatrice Boutillier ◽  
Alice Frérot ◽  
Caroline Farnoux ◽  
...  
Keyword(s):  
Eye Movement ◽  
Brain Structures ◽  
Immature Brain ◽  
Movement Performance ◽  
Preterm Born

scholarly journals Strong age but weak sex effects in eye movement performance in the general adult population: Evidence from the Rhineland Study

2021 ◽  
Vol 178 ◽  
pp. 124-133
Author(s):  
Annabell Coors ◽  
Natascha Merten ◽  
David D. Ward ◽  
Matthias Schmid ◽  
Monique M.B. Breteler ◽  
...  
Keyword(s):  
Eye Movement ◽  
Adult Population ◽  
Sex Effects ◽  
Movement Performance ◽  
General Adult Population

scholarly journals Dynamic modulation of theta–gamma coupling during rapid eye movement sleep

SLEEP ◽  
2019 ◽  
Vol 42 (12) ◽  
Author(s):  
Mojtaba Bandarabadi ◽  
Richard Boyce ◽  
Carolina Gutierrez Herrera ◽  
Claudio L Bassetti ◽  
Sylvain Williams ◽  
...  
Keyword(s):  
Eye Movement ◽  
Rem Sleep ◽  
Temporal Dynamics ◽  
Brain Structures ◽  
Rapid Eye Movement ◽  
Sleep Episode ◽  
Frequency Coupling ◽  
Theta Phase ◽  
Hippocampal Networks ◽  
Cross Frequency Coupling

Abstract Theta phase modulates gamma amplitude in hippocampal networks during spatial navigation and rapid eye movement (REM) sleep. This cross-frequency coupling has been linked to working memory and spatial memory consolidation; however, its spatial and temporal dynamics remains unclear. Here, we first investigate the dynamics of theta–gamma interactions using multiple frequency and temporal scales in simultaneous recordings from hippocampal CA3, CA1, subiculum, and parietal cortex in freely moving mice. We found that theta phase dynamically modulates distinct gamma bands during REM sleep. Interestingly, we further show that theta–gamma coupling switches between recorded brain structures during REM sleep and progressively increases over a single REM sleep episode. Finally, we show that optogenetic silencing of septohippocampal GABAergic projections significantly impedes both theta–gamma coupling and theta phase coherence. Collectively, our study shows that phase-space (i.e. cross-frequency coupling) coding of information during REM sleep is orchestrated across time and space consistent with region-specific processing of information during REM sleep including learning and memory.

Persistent epileptiform activity induced by low Mg2+in intact immature brain structures

2002 ◽  
Vol 16 (5) ◽  
pp. 850-860 ◽  
Author(s):  
P. P. Quilichini ◽  
D. Diabira ◽  
C. Chiron ◽  
Y. Ben-Ari ◽  
H. Gozlan
Keyword(s):  
Epileptiform Activity ◽  
Brain Structures ◽  
Immature Brain

scholarly journals Perception of Dynamic Social and Non-social Stimuli in Preterm and Full-term Children: Neurocognitive Correlates in Early Childhood

2018 ◽  
Author(s):  
D Chegodaev ◽  
P Pavlova ◽  
N V Pavlova
Keyword(s):  
Early Childhood ◽  
Social Development ◽  
Brain Structures ◽  
Full Term ◽  
Human Infants ◽  
The Social ◽  
Behavioral Impairments ◽  
Preterm Born ◽  
Learning And Cognition ◽  
Almost All

Preterm birth is the leading cause of newborn deaths in almost all countries around the world. Whilst survivors encounter severe motor, cognitive and behavioral impairments during infancy or later in their lives, the studies of the recent years have demonstrated that the social development serving a basis for learning and cognition of the environment in human infants can be severely affected even in normally developing preterm born children (gestational age < 37 weeks). The current article presents a discussion on the behavioral as well as the neuroimaging aspects of the social maturation in preterm and full-term children, depicting complexity of theimpairments and focusing on the involved brain structures. Further, authors perform the design of the longitudinal study of social and non-social perception in early childhood, implemented on the base of the Laboratory for Brain and Neurocognitive Development (Ural Federal University). Keywords: prematurity, social development, early childhood, neurocognitive correlates

scholarly journals When hand movements improve eye movement performance

2016 ◽  
Vol 16 (12) ◽  
pp. 374
Author(s):  
Jolande Fooken ◽  
Kathryn Lalonde ◽  
Miriam Spering
Keyword(s):  
Eye Movement ◽  
Hand Movements ◽  
Movement Performance

scholarly journals Medulla glutamatergic neurons control wake-sleep transitions

2021 ◽  
Author(s):  
Sasa Teng ◽  
Fenghua Zhen ◽  
Jose Canovas Schalchli ◽  
Xinyue Chen ◽  
Hao Jin ◽  
...  
Keyword(s):  
Eye Movement ◽  
Animal Species ◽  
Preoptic Area ◽  
Nrem Sleep ◽  
Brain Structures ◽  
Rapid Eye Movement ◽  
Glutamatergic Neurons ◽  
Sleep Maintenance ◽  
Brain Circuits

SUMMARYSleep is a ubiquitous behavior in animal species. Yet, brain circuits controlling sleep remain poorly understood. Previous studies have identified several brain structures that promote sleep, but whether these structures are involved in sleep initiation or sleep maintenance remains largely unknown. Here we identified a population of glutamatergic neurons in the medulla that project to the preoptic area (POA), a prominent sleep-promoting region. Chemogenetic silencing of POA-projecting medulla neurons disrupts the transitions from wakefulness to Non-Rapid Eye Movement (NREM) sleep, whereas chemogenetic activation of these neurons promotes NREM sleep. Moreover, we show that optogenetic activation of medulla glutamatergic neurons or their projections in the POA reliably initiates long-lasting NREM sleep in awake mice. Together, our findings uncover a novel excitatory brainstem-hypothalamic circuit that controls the wake-sleep transitions.

scholarly journals Effect of different font sizes and of spaces between words on eye movement performance: An eye tracker study in dyslexic and non-dyslexic children

2018 ◽  
Vol 153 ◽  
pp. 24-29 ◽  
Author(s):  
Francesco Masulli ◽  
Martina Galluccio ◽  
Christophe-Loïc Gerard ◽  
Hugo Peyre ◽  
Stefano Rovetta ◽  
...  
Keyword(s):  
Eye Movement ◽  
Eye Tracker ◽  
Movement Performance
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