User profiles for "author:Joshua Kahan"

Joshua Kahan

Weill Cornell Medicine & Columbia University
Verified email at med.cornell.edu
Cited by 3586

The nucleus basalis of Meynert: a new target for deep brain stimulation in dementia?

J Gratwicke, J Kahan, L Zrinzo, M Hariz… - Neuroscience & …, 2013 - Elsevier
Dementia is a major cause of disability amongst the elderly and represents a serious global
health issue. Current treatments for dementia are limited; at best they provide inadequate …

Cerebrovascular complications of COVID-19 and COVID-19 vaccination

M De Michele, J Kahan, I Berto, OG Schiavo… - Circulation …, 2022 - Am Heart Assoc
The risk of stroke and cerebrovascular disease complicating infection with SARS-CoV-2 has
been extensively reported since the onset of the pandemic. The striking efforts of many …

Risk of ischemic stroke in patients with coronavirus disease 2019 (COVID-19) vs patients with influenza

AE Merkler, NS Parikh, S Mir, A Gupta, H Kamel… - JAMA …, 2020 - jamanetwork.com
Importance It is uncertain whether coronavirus disease 2019 (COVID-19) is associated with
a higher risk of ischemic stroke than would be expected from a viral respiratory infection …

[HTML][HTML] On nodes and modes in resting state fMRI

KJ Friston, J Kahan, A Razi, KE Stephan, O Sporns - NeuroImage, 2014 - Elsevier
This paper examines intrinsic brain networks in light of recent developments in the
characterisation of resting state fMRI timeseries—and simulations of neuronal fluctuations …

[HTML][HTML] A DCM for resting state fMRI

KJ Friston, J Kahan, B Biswal, A Razi - Neuroimage, 2014 - Elsevier
This technical note introduces a dynamic causal model (DCM) for resting state fMRI time
series based upon observed functional connectivity—as measured by the cross spectra …

COVID-19 presenting with ophthalmoparesis from cranial nerve palsy

M Dinkin, V Gao, J Kahan, S Bobker, M Simonetto… - Neurology, 2020 - AAN Enterprises
COVID-19 presenting with ophthalmoparesis from cranial nerve palsy | Neurology Skip to main
content Skip to main content AAN.com AAN Publications Author Center About the Journals …

Motor and cognitive advantages persist 12 months after exenatide exposure in Parkinson's disease

I Aviles-Olmos, J Dickson… - Journal of …, 2014 - content.iospress.com
Background: Data from an open label randomised controlled trial have suggested possible
advantages on both motor and non-motor measures in patients with Parkinson's disease …

[HTML][HTML] Construct validation of a DCM for resting state fMRI

A Razi, J Kahan, G Rees, KJ Friston - Neuroimage, 2015 - Elsevier
Recently, there has been a lot of interest in characterising the connectivity of resting state
brain networks. Most of the literature uses functional connectivity to examine these intrinsic …

Resting state functional MRI in Parkinson's disease: the impact of deep brain stimulation on 'effective'connectivity

J Kahan, M Urner, R Moran, G Flandin, A Marreiros… - Brain, 2014 - academic.oup.com
Depleted of dopamine, the dynamics of the parkinsonian brain impact on both 'action'and
'resting'motor behaviour. Deep brain stimulation has become an established means of …

LSD modulates music-induced imagery via changes in parahippocampal connectivity

M Kaelen, L Roseman, J Kahan… - European …, 2016 - Elsevier
Psychedelic drugs such as lysergic acid diethylamide (LSD) were used extensively in
psychiatry in the past and their therapeutic potential is beginning to be re-examined today …