scholarly journals Colour vision across the life span: effect of age, ambient illumination and individual differences

2017 ◽  
Vol 17 (7) ◽  
pp. 26
Author(s):  
Sophie Wuerger ◽  
Kaida Xiao ◽  
Tushar Chauhan
Keyword(s):  
Individual Differences ◽  
Life Span ◽  
Colour Vision ◽  
Ambient Illumination ◽  
Effect Of Age

scholarly journals A sub+ cortical fMRI-based surface parcellation

2019 ◽  
Author(s):  
John D. Lewis ◽  
Gleb Bezgin ◽  
Vladimir S. Fonov ◽  
D. Louis Collins ◽  
Alan C. Evans
Keyword(s):  
Individual Differences ◽  
Functional Connectivity ◽  
Life Span ◽  
Brain Volume ◽  
Subcortical Structures ◽  
Common Space ◽  
Cortical Parcellation ◽  
Connectivity Patterns ◽  
Deep Gray Matter ◽  
Volumetric Registration

AbstractBoth the cortex and the subcortical structures are organized into a large number of distinct areas reflecting functional and cytoarchitectonic differences. Mapping these areas is of fundamental importance to neuroscience. A central obstacle to this task is the inaccuracy associated with mapping results from individuals into a common space. The vast individual differences in morphology pose a serious problem for volumetric registration. Surface-based approaches fare substantially better, but have thus far been used only for cortical parcellation. We extend this surface-based approach to include also the subcortical deep gray-matter structures. Using the life-span data from the Enhanced Nathan Klein Institute - Rockland Sample, comprised of data from 590 individuals from 6 to 85 years of age, we generate a functional parcellation of both the cortical and subcortical surfaces. To assess this extended parcellation, we show that our extended functional parcellation provides greater homogeneity of functional connectivity patterns than do arbitrary parcellations matching in the number and size of parcels. We also show that our subcortical parcels align with known subnuclei. Further, we show that this parcellation is appropriate for use with data from other modalities; we generate cortical and subcortical white/gray contrast measures for this same dataset, and draw on the fact that areal differences are evident in the relation of white/gray contrast to age, to sex, to brain volume, and to interactions of these terms; we show that our extended functional parcellation provides an improved fit to the complexity of the life-span changes in the white/gray contrast data compared to arbitrary parcellations matching in the number and size of parcels. We provide our extended functional parcellation for the use of the neuroimaging community.

Individual differences in the perception of temporal order: The effect of age and cognition

2009 ◽  
Vol 26 (2) ◽  
pp. 135-147 ◽  
Author(s):  
Aneta Szymaszek ◽  
Magdalena Sereda ◽  
Ernst Pöppel ◽  
Elzbieta Szelag
Keyword(s):  
Individual Differences ◽  
Temporal Order ◽  
Effect Of Age

Individual Differences in Locus of Control During the Second Half of the Life Span for Identical and Fraternal Twins Reared Apart and Reared Together

1989 ◽  
Vol 44 (4) ◽  
pp. P100-P105 ◽  
Author(s):  
N. L. Pedersen ◽  
M. Gatz ◽  
R. Plomin ◽  
J. R. Nesselroade ◽  
G. E. McClearn
Keyword(s):  
Individual Differences ◽  
Locus Of Control ◽  
Life Span

Effect of Age at Irradiation on Life Span in the Male Rat

1964 ◽  
Vol 22 (1) ◽  
pp. 106 ◽  
Author(s):  
David C. L. Jones ◽  
Donald J. Kimeldorf
Keyword(s):  
Life Span ◽  
Male Rat ◽  
Effect Of Age
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