Faculty Opinions recommendation of Retinotopic map refinement requires spontaneous retinal waves during a brief critical period of development.

2004 ◽  
Author(s):  
Harukazu Nakamura
Keyword(s):  
Critical Period ◽  
Retinal Waves ◽  
Critical Period Of Development ◽  
Retinotopic Map

scholarly journals Retinotopic Map Refinement Requires Spontaneous Retinal Waves during a Brief Critical Period of Development

Neuron ◽  
2003 ◽  
Vol 40 (6) ◽  
pp. 1147-1160 ◽  
Author(s):  
Todd McLaughlin ◽  
Christine L. Torborg ◽  
Marla B. Feller ◽  
Dennis D.M. O'Leary
Keyword(s):  
Critical Period ◽  
Retinal Waves ◽  
Critical Period Of Development ◽  
Retinotopic Map

scholarly journals Nitrogenous metabolism in Thoroughbred and Arabian foals from birth to five months of age

2006 ◽  
Vol 58 (4) ◽  
pp. 525-529 ◽  
Author(s):  
G. Piccione ◽  
A. Costa ◽  
F. Fazio ◽  
F. Grasso ◽  
G. Caola
Keyword(s):  
Uric Acid ◽  
Serum Concentration ◽  
Nitrogen Metabolism ◽  
Rectal Temperature ◽  
Total Protein ◽  
Critical Period ◽  
Critical Period Of Development ◽  
Over Time ◽  
Time Point ◽  
Nitrogenous Metabolism

The maturation of nitrogen metabolism was studied in six Thoroughbred and six Arabian foals. Rectal temperature, heart and respiratory rates and serum concentration of several hematochemical parameters (total protein, urea, uric acid, creatinine, and albumine) were monitored from birth to 5 months of age. In both breeds, all the parameters except albumine showed significant differences over time (P<0.05). The two breeds did not differ from each other at any time point. Statistically significant decreases in urea and creatinine concentrations were related to the growth needs of foals during this critical period of development.

Mannerisms in the Congenitally Blind Child

1972 ◽  
Vol 66 (9) ◽  
pp. 297-302
Author(s):  
John J. Knight
Keyword(s):  
Physical Activity ◽  
Critical Period ◽  
Early Infancy ◽  
Coping Behaviors ◽  
Gross Motor ◽  
Blind Child ◽  
Motor Behaviors ◽  
Congenitally Blind ◽  
Critical Period Of Development

□ In summary: (1) Mannerisms are behaviors that the blind child uses to cope with tensions created by situations of frustration, fear, excitement, stimulation deficit, physical activity deprivation, insecurity, etc. (2) The blind child resorts to mannerisms, which are non-instrumental gross motor behaviors learned during early infancy, when he does not have a set of strong instrumental coping behaviors. (3) The blind child's lack of vision impedes the development of essential instrumental behaviors that are learned during infancy, such as reaching and crawling. (4) The blind infant must be given assistance which will enable him to develop each of his instrumental behaviors more completely, especially during the critical period of development for each behavior.

Subchronic perinatal asphyxia in rats: Embryo–foetal assessment of a new model of oxidative stress during critical period of development

2013 ◽  
Vol 61 ◽  
pp. 233-239 ◽  
Author(s):  
Eduard Ujhazy ◽  
Michal Dubovicky ◽  
Jana Navarova ◽  
Natalia Sedlackova ◽  
Ludovit Danihel ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Critical Period ◽  
Perinatal Asphyxia ◽  
New Model ◽  
Critical Period Of Development

scholarly journals Spatial pattern of spontaneous retinal waves instructs retinotopic map refinement more than activity frequency

2015 ◽  
Vol 75 (6) ◽  
pp. 621-640 ◽  
Author(s):  
Hong-Ping Xu ◽  
Timothy J. Burbridge ◽  
Ming-Gang Chen ◽  
Xinxin Ge ◽  
Yueyi Zhang ◽  
...  
Keyword(s):  
Spatial Pattern ◽  
Retinal Waves ◽  
Activity Frequency ◽  
Retinotopic Map

scholarly journals Neuron-glia signaling in developing retina mediated by neurotransmitter spillover

eLife ◽  
2015 ◽  
Vol 4 ◽  
Author(s):  
Juliana M Rosa ◽  
Rémi Bos ◽  
Georgeann S Sack ◽  
Cécile Fortuny ◽  
Amit Agarwal ◽  
...  
Keyword(s):  
Critical Period ◽  
Neural Circuits ◽  
Critical Role ◽  
Muscarinic Acetylcholine Receptor ◽  
Calcium Transients ◽  
Ionotropic Glutamate Receptor ◽  
Receptor Antagonists ◽  
Retinal Waves ◽  
Correlated Activity ◽  
Glutamate Receptor Antagonists

Neuron-glia interactions play a critical role in the maturation of neural circuits; however, little is known about the pathways that mediate their communication in the developing CNS. We investigated neuron-glia signaling in the developing retina, where we demonstrate that retinal waves reliably induce calcium transients in Müller glial cells (MCs). During cholinergic waves, MC calcium transients were blocked by muscarinic acetylcholine receptor antagonists, whereas during glutamatergic waves, MC calcium transients were inhibited by ionotropic glutamate receptor antagonists, indicating that the responsiveness of MCs changes to match the neurotransmitter used to support retinal waves. Using an optical glutamate sensor we show that the decline in MC calcium transients is caused by a reduction in the amount of glutamate reaching MCs. Together, these studies indicate that neurons and MCs exhibit correlated activity during a critical period of retinal maturation that is enabled by neurotransmitter spillover from retinal synapses.

Critical Period (of Development)

2016 ◽  
Author(s):  
John H. Duffus ◽  
Monica Nordberg ◽  
Douglas M. Templeton
Keyword(s):  
Critical Period ◽  
Critical Period Of Development

Helping Children Transition from Kindergarten to First Grade

2007 ◽  
Vol 10 (3) ◽  
pp. 2156759X0701000
Author(s):  
Christopher A. Sink ◽  
Cher N. Edwards ◽  
Sarah J. Weir
Keyword(s):  
Elementary School ◽  
Young Children ◽  
School Counselors ◽  
Critical Period ◽  
First Grade ◽  
Development Research ◽  
Elementary School Counselors ◽  
Effective Interventions ◽  
Critical Period Of Development

This article documents the challenges that young children face as they move from kindergarten to first grade and the important role that elementary school counselors can play in working with students, parents/caregivers, and teachers during this critical period of development. Research- and practitioner-based recommendations for effective interventions are discussed.

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