The search for true numbers of neurons and glial cells in the human brain: A review of 150 years of cell counting

CS Von Bartheld, J Bahney… - Journal of …, 2016 - Wiley Online Library
For half a century, the human brain was believed to contain about 100 billion neurons and
one trillion glial cells, with a glia: neuron ratio of 10: 1. A new counting method, the isotropic …

The locus coeruleus: essential for maintaining cognitive function and the aging brain

M Mather, CW Harley - Trends in cognitive sciences, 2016 - cell.com
Research on cognitive aging has focused on how decline in various cortical and
hippocampal regions influence cognition. However, brainstem regions play essential …

In vivo and neuropathology data support locus coeruleus integrity as indicator of Alzheimer's disease pathology and cognitive decline

HIL Jacobs, JA Becker, K Kwong… - Science translational …, 2021 - science.org
Several autopsy studies recognize the locus coeruleus (LC) as the initial site of
hyperphosphorylated TAU aggregation, and as the number of LC neurons harboring TAU …

The role of noradrenaline in cognition and cognitive disorders

N Holland, TW Robbins, JB Rowe - Brain, 2021 - academic.oup.com
Many aspects of cognition and behaviour are regulated by noradrenergic projections to the
forebrain originating from the locus coeruleus, acting through alpha and beta …

[HTML][HTML] Egocentric and allocentric spatial reference frames in aging: A systematic review

D Colombo, S Serino, C Tuena, E Pedroli… - Neuroscience & …, 2017 - Elsevier
Aging affects many aspects of everyday living, such as autonomy, security and quality of life.
Among all, spatial memory and spatial navigation show a gradual but noticeable decline, as …

The mechanistic link between selective vulnerability of the locus coeruleus and neurodegeneration in Alzheimer's disease

BJ Matchett, LT Grinberg, P Theofilas, ME Murray - Acta neuropathologica, 2021 - Springer
Alzheimer's disease (AD) is neuropathologically characterized by the intracellular
accumulation of hyperphosphorylated tau and the extracellular deposition of amyloid-β …

The pathological process underlying Alzheimer's disease in individuals under thirty

H Braak, K Del Tredici - Acta neuropathologica, 2011 - Springer
Brains of 42 individuals between the ages of 4 and 29 were examined with antibodies (AT8,
4G8) and silver stains for the presence of intraneuronal and extracellular protein aggregates …

[HTML][HTML] Pupil size signals mental effort deployed during multiple object tracking and predicts brain activity in the dorsal attention network and the locus coeruleus

D Alnæs, MH Sneve, T Espeseth, T Endestad… - Journal of …, 2014 - iovs.arvojournals.org
Attentional effort relates to the allocation of limited-capacity attentional resources to meet
current task demands and involves the activation of top-down attentional systems in the …

The affective neuroscience of aging

M Mather - Annual review of psychology, 2016 - annualreviews.org
Although aging is associated with clear declines in physical and cognitive processes,
emotional functioning fares relatively well. Consistent with this behavioral profile, two core …

Neocortical glial cell numbers in human brains

DP Pelvig, H Pakkenberg, AK Stark, B Pakkenberg - Neurobiology of aging, 2008 - Elsevier
Stereological cell counting was applied to post-mortem neocortices of human brains from 31
normal individuals, age 18–93 years, 18 females (average age 65 years, range 18–93) and …