Browsing HMS Scholarly Articles by Keyword "fMRI"
Now showing items 1-20 of 55
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Acupuncture mobilizes the brain's default mode and its anti-correlated network in healthy subjects
(Elsevier BV, 2009)Previous work has shown that acupuncture stimulation evokes deactivation of a limbic-paralimbic-neocortical network (LPNN) as well as activation of somatosensory brain regions. This study explores the activity and functional ... -
Age-related striatal BOLD changes without changes in behavioral loss aversion
(Frontiers Media S.A., 2015)Loss aversion (LA), the idea that negative valuations have a higher psychological impact than positive ones, is considered an important variable in consumer research. The literature on aging and behavior suggests older ... -
Altered Gray Matter Volume and White Matter Integrity in College Students with Mobile Phone Dependence
(Frontiers Media S.A., 2016)Mobile phone dependence (MPD) is a behavioral addiction that has become an increasing public mental health issue. While previous research has explored some of the factors that may predict MPD, the underlying neural mechanisms ... -
Altered intrinsic functional coupling between core neurocognitive networks in Parkinson's disease
(Elsevier, 2015)Parkinson's disease (PD) is largely attributed to disruptions in the nigrostriatal dopamine system. These neurodegenerative changes may also have a more global effect on intrinsic brain organization at the cortical level. ... -
Altered threat and safety neural processing linked to persecutory delusions in schizophrenia: a two-task fMRI study
(Elsevier BV, 2015)Persecutory delusions are a clinically important symptom in schizophrenia associated with social avoidance and increased violence. Few studies have investigated the neurobiology of persecutory delusions, which is a ... -
Assessing the influence of scanner background noise on auditory processing. I. An fMRI study comparing three experimental designs with varying degrees of scanner noise
(Wiley-Blackwell, 2007)We compared two experimental designs aimed at minimizing the influence of scanner background noise (SBN) on functional MRI (fMRI) of auditory processes with one conventional fMRI design. Ten subjects listened to a series ... -
Assessing the influence of scanner background noise on auditory processing. II. An fMRI study comparing auditory processing in the absence and presence of recorded scanner noise using a sparse design
(Wiley-Blackwell, 2007)Several studies reported decreased signal intensities within auditory areas for experimental designs employing continuous scanner background noise (SBN) in comparison to designs with less or no SBN. This study examined the ... -
Atypical visual processing in posttraumatic stress disorder☆
(Elsevier, 2013)Background: Many patients with Posttraumatic Stress Disorder (PTSD) feel overwhelmed in situations with high levels of sensory input, as in crowded situations with complex sensory characteristics. These difficulties might ... -
Auditory processing abnormalities in schizotypal personality disorder: An fMRI experiment using tones of deviant pitch and duration
(Elsevier BV, 2008)Background: One of the cardinal features of schizotypal personality disorder (SPD) is language abnormalities. The focus of this study was to determine whether or not there are also processing abnormalities of pure tones ... -
Beyond the amygdala: Linguistic threat modulates peri-sylvian semantic access cortices
(Elsevier BV, 2015)In this study, healthy volunteers were scanned using functional magnetic resonance imaging (fMRI) to investigate the neural systems involved in processing the threatening content conveyed via visually presented “threat ... -
Brain activity and connectivity during poetry composition: Toward a multidimensional model of the creative process
(John Wiley and Sons Inc., 2015)Abstract Creativity, a multifaceted construct, can be studied in various ways, for example, investigating phases of the creative process, quality of the creative product, or the impact of expertise. Previous neuroimaging ... -
Brain Changes in Responders vs. Non-Responders in Chronic Migraine: Markers of Disease Reversal
(Frontiers Media S.A., 2016)The aim of this study was to identify structural and functional brain changes that accompanied the transition from chronic (CM; ≥15 headache days/month) to episodic (EM; <15 headache days/month) migraine following prophylactic ... -
Brain Networks of Novelty-Driven Involuntary and Cued Voluntary Auditory Attention Shifting
(Public Library of Science, 2012)In everyday life, we need a capacity to flexibly shift attention between alternative sound sources. However, relatively little work has been done to elucidate the mechanisms of attention shifting in the auditory domain. ... -
Brain Plasticity in Blind Subjects Centralizes Beyond the Modal Cortices
(Frontiers Media S.A., 2016)It is well established that the human brain reorganizes following sensory deprivations. In blind individuals, visual processing regions including the lateral occipital cortex (LOC) are activated by auditory and tactile ... -
Citicoline Treatment Improves Measures of Impulsivity and Task Performance in Chronic Marijuana Smokers: A Pilot BOLD fMRI Study
(2015)Objective: Citicoline is an endogenous nucleotide that has historically been used to treat stroke, traumatic brain injury, and cognitive dysfunction. Research has also shown that citicoline treatment is associated with ... -
The compensatory dynamic of inter-hemispheric interactions in visuospatial attention revealed using rTMS and fMRI
(Frontiers Media S.A., 2014)A balance of mutual tonic inhibition between bi-hemispheric posterior parietal cortices is believed to play an important role in bilateral visual attention. However, experimental support for this notion has been mainly ... -
Consensus Paper: The Role of the Cerebellum in Perceptual Processes
(Springer US, 2014)Various lines of evidence accumulated over the past 30 years indicate that the cerebellum, long recognized as essential for motor control, also has considerable influence on perceptual processes. In this paper, we bring ... -
Contribution of estradiol levels and hormonal contraceptives to sex differences within the fear network during fear conditioning and extinction
(BioMed Central, 2015)Background: Findings about sex differences in the field of fear conditioning and fear extinction have been mixed. At the psychophysiological level, sex differences emerge only when taking estradiol levels of women into ... -
Controllability Modulates the Anticipatory Response in the Human Ventromedial Prefrontal Cortex
(Frontiers Media S.A., 2012)Research has consistently shown that control is critical to psychological functioning, with perceived lack of control considered to play a crucial role in the manifestation of symptoms in psychiatric disorders. In a model ... -
Data Sharing In Neuroimaging Research
(Frontiers Research Foundation, 2012)Significant resources around the world have been invested in neuroimaging studies of brain function and disease. Easier access to this large body of work should have profound impact on research in cognitive neuroscience ...