User profiles for K.A. Tsvetanov

Kamen A. Tsvetanov

Alzheimer's Society Dementia Reserach Leader Fellow
Verified email at cam.ac.uk
Cited by 3741

The effect of ageing on f MRI: Correction for the confounding effects of vascular reactivity evaluated by joint f MRI and MEG in 335 adults

KA Tsvetanov, RNA Henson, LK Tyler… - Human brain …, 2015 - Wiley Online Library
In functional magnetic resonance imaging (fMRI) research one is typically interested in neural
activity. However, the blood‐oxygenation level‐dependent (BOLD) signal is a composite …

Extrinsic and intrinsic brain network connectivity maintains cognition across the lifespan despite accelerated decay of regional brain activation

KA Tsvetanov, RNA Henson, LK Tyler… - Journal of …, 2016 - Soc Neuroscience
The maintenance of wellbeing across the lifespan depends on the preservation of cognitive
function. We propose that successful cognitive aging is determined by interactions both …

Challenges in measuring individual differences in functional connectivity using fMRI: the case of healthy aging

L Geerligs, KA Tsvetanov, RN Henson - Human brain mapping, 2017 - Wiley Online Library
… The details of this procedure, including methods of outlier detection are described in Tsvetanov
et al. [2015]. LF and HF-HRV were log-transformed to obtain more normal distributions. …

Neuroinflammation and functional connectivity in Alzheimer's disease: interactive influences on cognitive performance

L Passamonti, KA Tsvetanov, PS Jones… - Journal of …, 2019 - Soc Neuroscience
Neuroinflammation is a key part of the etio-pathogenesis of Alzheimer's disease (AD). We
tested the relationship between neuroinflammation and the disruption of functional …

[HTML][HTML] Dispersion of functional gradients across the adult lifespan

…, J Seidlitz, L Ronan, B Bernhardt, KA Tsvetanov… - Neuroimage, 2020 - Elsevier
Ageing is commonly associated with changes to segregation and integration of functional
brain networks, but, in isolation, current network-based approaches struggle to elucidate …

Microglial activation and tau burden predict cognitive decline in Alzheimer's disease

…, RA Kievit, L Passamonti, PS Jones, KA Tsvetanov… - Brain, 2020 - academic.oup.com
Tau pathology, neuroinflammation, and neurodegeneration are key aspects of Alzheimer’s
disease. Understanding whether these features predict cognitive decline, alone or in …

Redefining the multidimensional clinical phenotypes of frontotemporal lobar degeneration syndromes

…, C Lansdall, PV Rodríguez, A Wilcox, KA Tsvetanov… - Brain, 2020 - academic.oup.com
The syndromes caused by frontotemporal lobar degeneration have highly heterogeneous
and overlapping clinical features. There has been great progress in the refinement of clinical …

[HTML][HTML] Noradrenergic-dependent functions are associated with age-related locus coeruleus signal intensity differences

KY Liu, RA Kievit, KA Tsvetanov, MJ Betts… - Nature …, 2020 - nature.com
The locus coeruleus (LC), the origin of noradrenergic modulation of cognitive and behavioral
function, may play an important role healthy ageing and in neurodegenerative conditions. …

[HTML][HTML] Ageing increases reliance on sensorimotor prediction through structural and functional differences in frontostriatal circuits

N Wolpe, JN Ingram, KA Tsvetanov, L Geerligs… - Nature …, 2016 - nature.com
The control of voluntary movement changes markedly with age. A critical component of motor
control is the integration of sensory information with predictions of the consequences of …

[HTML][HTML] Idiosyncratic responding during movie-watching predicted by age differences in attentional control

KL Campbell, MA Shafto, P Wright, KA Tsvetanov… - Neurobiology of …, 2015 - Elsevier
Much is known about how age affects the brain during tightly controlled, though largely contrived,
experiments, but do these effects extrapolate to everyday life? Naturalistic stimuli, such …