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magnetic-resonance
492 studies tagged magnetic-resonance, dated 1986-01-01 to 2026-03-31. Bibliography: BibTeX (.bib) · RIS (.ris)
Newest in this topic
- Synaptic loss in alcohol use disorder: clinical and mechanistic insights from a PET imaging study 2026-03-31
- Neighborhood environmental deprivation predicts the generalized neurocognitive deficit in schizophrenia 2025-12-19
- Bridging the Gap: Can Hippocampal Sclerosis Serve as a Surrogate Biomarker for LATE‐NC? 2025-12-01
Studies
492 studies carry this tag.
Date range
1986 to 2026
Top journals
- Neurology 38
- Biological psychiatry 36
- NeuroImage 32
- The American journal of psychiatry 22
- Proceedings of the National Academy of Sciences of the United States of America 20
148 journals in all.
Newest first, then by address. Each study has a usefulness score out of 100 (rubric version 4.0); tap a score to see what makes it up. Tags were assigned automatically from each study's title and summary. The same studies as a filter in the library.
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Rates of hippocampal atrophy (%/year) were 0.0 +/- 0.8 in the absent, 1.7 +/- 0.4 in the moderate, and 3.6 +/- 1.0 in the severe (mean +/- SD) tertile.
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25 older individuals with MCI performed a visual scene encoding task during fMRI scanning, and were followed clinically for at least 4 years after scanning.
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Bipolar disorder (BD) is thought to be associated with abnormalities within discrete brain regions associated with emotional regulation, particularly in fronto-limbic-subcortical circuits.
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These findings support evidence of genetic control of brain volume even in adults, particularly of hippocampal and neocortical volume and of cortical volumetric reductions being familial, but do not support measures of subcortical volumes per se as representing intermediate biologic phenotypes.
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Consistent with preclinical literature supporting the neuroprotective effects of lithium, long-term treatment is associated with preservation of recollective memory function and increased hippocampal size in vivo.
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Our findings confirm and extend previous voxel-based morphometry analyses in ill subjects with schizophrenia.
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Even though in vivo imaging studies document significant reductions of hippocampal volume in depressed patients, the exact underlying cellular mechanisms are unclear.
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Reduced hippocampal volume may be suggestive of a risk factor for developing MDD.
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Cross-sectional studies of normal aging indicate an association between memory and hippocampal volume, and between executive functioning and subcortical-frontal circuits.
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In this review, we report on studies that have assessed the effects of exogenous and endogenous increases in stress hormones on human cognitive performance.
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Most previous magnetic resonance imaging (MRI) studies of patients with bipolar disorder (BD) report similar hippocampus (HC) volumes across patients and controls, but because patients studied were heterogeneous with respect to course of illness variables and medication status, the conclusions of these studies remain equivocal.
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In aged and pathological populations, reduced hippocampal volume is frequently described in association with impairment of hippocampus-dependent cognitive processes and chronically elevated cortisol levels.
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The s allele variant of the serotonin transporter gene (5-HTT) has recently been observed to moderate the relationship of stress to depression and anxiety.
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Brain abnormalities are present in nonpsychotic first-degree relatives of patients with schizophrenia and are most pronounced in the hippocampus.
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Smaller hippocampal volume is associated with psychiatric disorders.
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Additional studies seem to be warranted.
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36/100
These results suggest that the medial temporal lobe may be the first brain site affected by type 2 diabetes and that individuals in poorer metabolic control may be affected to a greater extent.
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36/100
Chronic stress in non-human animals decreases the volume of the hippocampus, a brain region that supports learning and memory and that regulates neuroendocrine activity.
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Hippocampal MRglc reductions using FDG-PET during normal aging predict cognitive decline years in advance of the clinical diagnosis.
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Patients with acquired chronic bilateral vestibular loss were recently found to have a significant impairment in spatial memory and navigation when tested with a virtual Morris water task.
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43/100
Hippocampal sclerosis (HS) is characterized by selective neuronal loss and gliosis in CA1 and the subiculum and has been associated with several disorders, including Alzheimer's disease, frontotemporal lobar degeneration with ubiquitin immunoreactive inclusions (FTLD-U), vascular dementia and some tauopathies.
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Aberrations in hippocampal asymmetry and left hippocampal volumes were found for adolescent heavy drinkers.
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Previous studies in humans have shown the presence of an age-related reduction of hippocampal (HC) volume, as well as the presence of reduced HC volume in psychiatric populations suffering from schizophrenia, depression or post-traumatic stress disorder.
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The concept of mild cognitive impairment (MCI) has been proposed to represent a transitional stage between normal aging and dementia.
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These data support the view that heavy drinking exerts a unique and selectively injurious effect on the hippocampus.
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Antidepressants protect against hippocampal volume loss in humans and reverse stress-induced atrophic changes in animals thus supporting the hypothesis that the pathophysiology of stress-related disorders such as depression involves reductions in neuronal connectivity and this effect is reversible by antidepressant treatment.
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Structural imaging studies investigating hippocampal volumes in patients suffering from major depression have yielded mixed results.
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40/100
Alzheimer's disease is the most common neurodegenerative disorder in the elderly.
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The present findings emphasize that patients with reduced hippocampal volumes show more executive dysfunctions than their counterparts.
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The hippocampus (HC) and associated neural structures are hypothesized to contribute to individual differences in human spatial navigation.
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Ts65Dn, a well-characterized animal model for Down syndrome, has three copies of the distal end of mouse chromosome 16 and therefore has segmental trisomy for orthologs for nearly half of the genes located on human chromosome 21.
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The concept of amnestic mild cognitive impairment (MCI) describes older people who show a decline predominantly in memory function, but who do not meet criteria for dementia.
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Average volumetric changes are close to the limit of detection by MRI methods.
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This series of meta-analyses examined structural abnormalities of the hippocampus and other brain regions in persons with PTSD compared to trauma-exposed and non-exposed control groups.
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Characteristically arising in response to overwhelmingly terrifying events, post-traumatic stress disorder (PTSD) is a disorder of memory: sufferers seemingly relive their trauma in the form of involuntary recollection.
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The findings are consistent with the presence of smaller hippocampal and amygdalar volumes in patients with dissociative identity disorder, compared with healthy subjects.
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In the current experiment we conducted a multi-level analysis of age-related characteristics in the hippocampus of young adult (3 months), middle-aged (12 months), and old (24 months) Fisher 344xBrown Norway hybrid (FBNF1) rats.
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Schizophrenia and psychotic bipolar disorder are characterized by morphometric distinctions in ventricular and hippocampal regions.
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From clinical studies it is known that recurrent depressive episodes associate with a reduced hippocampal volume.
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Patients with chronic schizophrenia displayed bilateral hippocampal volume reduction.
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In spite of a relatively small sample size, the presence of the met-BDNF allele was found associated with a reduced volume of the hippocampal formation in healthy volunteers and may represent a vulnerability factor for the development of disease processes associated with the dysfunction of this brain region.
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These findings demonstrate a disruption in fornix integrity in patients with schizophrenia.
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The mind involves the whole body and two-way communication between the brain and the cardiovascular, immune, and other systems via neural and endocrine mechanisms.
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Brain areas implicated in the stress response include the amygdala, hippocampus, and prefrontal cortex.
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Atrophy of the hippocampus and amygdala on MRI in cognitively intact elderly people predicts dementia during a 6-year follow-up.
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Analysis of post-mortem tissue from patients with affective disorders has revealed a decreased number of glial cells in several brain areas.
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Hippocampal atrophy is not only a characteristic of Alzheimer's disease but also occurs in FTLD.
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Specific alleles of the DISC1 and TRAX genes on 1q42 appear to contribute to genetic risk for schizophrenia through disruptive effects on the structure and function of the prefrontal cortex, medial temporal lobe, and other brain regions.
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A larger WHR may be related to neurodegenerative, vascular, or metabolic processes that affect brain structures underlying cognitive decline and dementia.
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Daily restraint for 3 weeks was shown to atrophy dendrites of hippocampal pyramidal neurons in rats.
From across this tag
6 of the 492 studies in this tag, picked by a fixed rule (a hash of each study's address), not by score or date; each page of this list shows a different 6. The same 6 appear here every time.
- Cortical and hippocampal volume deficits in temporal lobe epilepsy
- Differential effects of childhood neglect and abuse during sensitive exposure periods on male and female hippocampus
- Association of Prenatal Maternal Psychological Distress With Fetal Brain Growth, Metabolism, and Cortical Maturation
- Self-esteem, locus of control, hippocampal volume, and cortisol regulation in young and old adulthood
- The stress model of chronic pain: evidence from basal cortisol and hippocampal structure and function in humans
- Defining the human hippocampus in cerebral magnetic resonance images--an overview of current segmentation protocols