User profiles for Carl A. Helmick
Carl A. HelmickPsychiatry Brain Imaging Laboratory, Dalhousie University Verified email at dal.ca Cited by 217 |
[HTML][HTML] The developmental brain age is associated with adversity, depression, and functional outcomes among adolescents
V Drobinin, H Van Gestel, CA Helmick… - Biological Psychiatry …, 2022 - Elsevier
Background Most psychiatric disorders emerge in the second decade of life. In the present
study, we examined whether environmental adversity, developmental antecedents, major …
study, we examined whether environmental adversity, developmental antecedents, major …
Neural and behavioral outcomes differ following equivalent bouts of motor imagery or physical practice
…, A Stratas, JL McArthur, CA Helmick… - Journal of Cognitive …, 2020 - direct.mit.edu
Despite its reported effectiveness for the acquisition of motor skills, we know little about how
motor imagery (MI)-based brain activation and performance evolves when MI (the imagined …
motor imagery (MI)-based brain activation and performance evolves when MI (the imagined …
[HTML][HTML] The comorbidity and cognition in multiple sclerosis (CCOMS) neuroimaging protocol: study rationale, MRI acquisition, and minimal image processing …
…, J Kornelsen, EL Mazerolle, CA Helmick… - Frontiers in …, 2022 - frontiersin.org
The Comorbidity and Cognition in Multiple Sclerosis (CCOMS) study represents a
coordinated effort by a team of clinicians, neuropsychologists, and neuroimaging experts to …
coordinated effort by a team of clinicians, neuropsychologists, and neuroimaging experts to …
[HTML][HTML] Neural coding of movement direction in the healthy human brain
CD Cowper-Smith, EYY Lau, CA Helmick, GA Eskes… - PloS one, 2010 - journals.plos.org
Neurophysiological studies in monkeys show that activity of neurons in primary cortex (M1),
pre-motor cortex (PMC), and cerebellum varies systematically with the direction of reaching …
pre-motor cortex (PMC), and cerebellum varies systematically with the direction of reaching …
Spatial normalization of multiple sclerosis brain MRI data depends on analysis method and software package
…, RA Marrie, EL Mazerolle, JD Fisk, CA Helmick… - Magnetic resonance …, 2020 - Elsevier
Background Spatially normalizing brain MRI data to a template is commonly performed to
facilitate comparisons between individuals or groups. However, the presence of multiple …
facilitate comparisons between individuals or groups. However, the presence of multiple …
Psychotic symptoms are associated with lower cortical folding in youth at risk for mental illness
…, EH Vallis, N Campbell, T Hajek, CA Helmick… - Journal of Psychiatry and …, 2020 - jpn.ca
Background: Cortical folding is essential for healthy brain development. Previous studies
have found regional reductions in cortical folding in adult patients with psychotic illness. It is …
have found regional reductions in cortical folding in adult patients with psychotic illness. It is …
Reliability of multimodal MRI brain measures in youth at risk for mental illness
V Drobinin, H Van Gestel, CA Helmick… - Brain and …, 2020 - Wiley Online Library
Introduction A new generation of large‐scale studies is using neuroimaging to investigate
adolescent brain development across health and disease. However, imaging artifacts such as …
adolescent brain development across health and disease. However, imaging artifacts such as …
[HTML][HTML] Intracortical Myelin in Youths at Risk for Depression
A Nazarova, V Drobinin, CA Helmick… - … Psychiatry Global Open …, 2024 - Elsevier
Background Major depressive disorder (MDD) is a leading cause of disability. To understand
why depression develops, it is important to distinguish between early neural markers of …
why depression develops, it is important to distinguish between early neural markers of …
Characteristics and applications of pyroelectric imaging systems
CN Helmick Jr - Modern Utilization of Infrared Technology I, 1976 - spiedigitallibrary.org
Pyroelectric imagers--now beginning their second decade of existence--are on the verge of
becoming practical devices. As a result of recent improvements, they show real promise in …
becoming practical devices. As a result of recent improvements, they show real promise in …
Brain age in bipolar disorders: Effects of lithium treatment
…, C Slaney, J Garnham, C Helmick… - Australian & New …, 2019 - journals.sagepub.com
Objective: Bipolar disorders increase the risk of dementia and show biological and brain
alterations, which resemble accelerated aging. Lithium may counter some of these processes …
alterations, which resemble accelerated aging. Lithium may counter some of these processes …