Cognitive activity resulted in increased flow of blood to the cerebral hemispheres. The increase was greater to the left hemisphere for a verbal task and greater to the right hemisphere for a spatial task. The direction and degree of hemispheric flow asymmetry were influenced by sex and handedness, females having a higher rate of blood flow per unit weight of brain, and females and left-handers having a greater percentage of fast-clearing tissue, presumably gray matter.
Effect of gender on glucose utilization rates in healthy humans: a positron emission tomography study
Apparent CBF decrease with normal aging due to partial volume effects: MR-based partial volume correction on CBF SPECT
Database of normal human cerebral blood flow measured by SPECT: II. Quantification of I-123-IMP studies with ARG method and effects of partial volume correction
Cognitive impairment after traumatic brain injury: a functional magnetic resonance imaging study using the Stroop task
Right hemisphere involvement in depression: toward a neuropsychological theory of negative affective experiences
Subcortical and temporal structures in affective disorder and schizophrenia: a magnetic resonance imaging study
Convergent evoked potential and cerebral blood flow evidence of task-specific hemispheric differences
Voluntary control of two lateralized conscious states: validation by electrical and behavioral studies
Effects of hypnosis on regional cerebral blood flow during ischemic pain with and without suggested hypnotic analgesia
Sex differences in spatial task performance of patients with and without unilateral cerebral lesions
Neural sexual mosaicism: sexual differentiation of the human temporo-parietal region for functional asymmetry
Cerebral blood flow in preterm infants affected by sex, mechanical ventilation, and intrauterine growth
Structural differences in the cerebral cortex of healthy female and male subjects: a magnetic resonance imaging study
Neural mechanisms associated with attention to temporal synchrony versus spatial orientation: an fMRI study
Cortical activity of good and poor spatial test performers during spatial and verbal processing studied with Slow Potential Topography
Effects of estrogen on brain development and neuroprotection--implications for negative symptoms in schizophrenia
Short forms of the Benton Judgment of Line Orientation Test: development and psychometric properties
Pathophysiological significance of cerebral perfusion abnormalities in major depression-trait or state marker?
Brain activation patterns during a selective attention test-a functional MRI study in healthy volunteers and patients with schizophrenia
Preliminary findings of simultaneous 18F-FDG and 99mTc-HMPAO SPECT in patients with depressive disorders at rest: differential correlates with ratings of anxiety
Magnetoencephalographic evidence of the interhemispheric asymmetry in echoic memory lifetime and its dependence on handedness and gender
Speech activation of language dominant hemisphere: a single-photon emission computed tomography study
Response to the letter to the editor by Armistead-jehle and Lee on Harch et Al., "A phase I study of low-pressure hyperbaric oxygen therapy for blast-induced post-concussion syndrome and post-traumatic stress disorder"
Sex- and brain size-related small-world structural cortical networks in young adults: a DTI tractography study
Reduced transit-time sensitivity in noninvasive magnetic resonance imaging of human cerebral blood flow
Assessment of functional hemispheric asymmetry by bilateral simultaneous cerebral blood flow velocity monitoring
Gender differences in cerebral blood flow and oxygenation response during focal physiologic neural activity
Lateralisation of cortical function during cognitive tasks: regional cerebral blood flow studies of normal individuals and patients with schizophrenia
Brain morphological changes and early marijuana use: a magnetic resonance and positron emission tomography study
Sex differences in brain-behavior relationships between verbal episodic memory and resting regional cerebral blood flow
Two transcranial Doppler studies on blood flow velocity in both middle cerebral arteries during rest and the performance of cognitive tasks
A quantitative dendritic analysis of Wernicke's area in humans. II. Gender, hemispheric, and environmental factors
Sex differences in patterns of hemispheric cerebral metabolism: a multiple regression/discriminant analysis of positron emission tomographic data
Hemispheric differentiation and dream recall: subjective estimates of sleep and dreams in different handedness groups
Cognitive asymmetries after waking from REM and NONREM sleep: effects of delayed testing and handedness
Asymmetrical visual deprivation: a technique to differentially influence lateral hemispheric function
Asymmetry and gender effect in functionally lateralized cortical regions: a proton MRS imaging study
The effect of sex and handedness on white matter anisotropy: a diffusion tensor magnetic resonance imaging study
A cognitive neuroscience-based computerized battery for efficient measurement of individual differences: standardization and initial construct validation
Cognitive tasks and cerebral blood flow through anterior cerebral arteries: a study via functional transcranial Doppler ultrasound recordings
Input parameter sensitivity analysis and comparison of quantification models for continuous arterial spin labeling
Hemodynamic responses in neural circuitries for detection of visual target and novelty: An event-related fMRI study
Clarification of the dual task dilemma: lateralized effects for perfunctory and purposeful tasks in left- and right-handed males
Sex and age dependencies of cerebral blood volume changes during cognitive activation: a multichannel near-infrared spectroscopy study
Increases in both cerebral glucose utilization and blood flow during execution of a somatosensory task
Effects of age and sex on the endogenous brain potential components during two continuous performance tasks
The influence of ethanol on blood flow velocity in major cerebral vessels. A prospective and controlled study
A brain imaging (single photon emission computerized tomography) study of semantic and affective processing in psychopaths
Gender differences in regional cerebral blood flow during transient self-induced sadness or happiness
Associations between regional brain physiology and trait impulsivity, motor inhibition, and impaired control over drinking
Toward neuroanatomical models of analogy: a positron emission tomography study of analogical mapping
Chemical heterogeneity of the living human brain: a proton MR spectroscopy study on the effects of sex, age, and brain region
Hemispheric activation of anterior and inferior prefrontal cortex during verbal encoding and recognition: a PET study of healthy volunteers
Lateralized changes in regional cerebral blood flow during performance of verbal and facial recognition tasks: correlations with performance and "effort"
An analysis of cerebral blood flow from middle cerebral arteries during cognitive tasks via functional transcranial Doppler recordings
Quantifying cerebral asymmetries for language in dextrals and adextrals with random-effects meta analysis
Gender differences in pain perception and patterns of cerebral activation during noxious heat stimulation in humans
Sex differences in brain and behavior in adolescence: Findings from the Philadelphia Neurodevelopmental Cohort
The reproducibility of the 133Xe inhalation technique in resting studies: task order and sex related effects in healthy young adults
Reliability of regional cerebral blood flow activation to cognitive tasks in elderly normal subjects
The influence of biological and technical factors on the variability of global and regional brain metabolism of 2-[18F]fluoro-2-deoxy-D-glucose
Validation of computerized episodic memory measures in a diverse clinical sample referred for neuropsychological assessment
A transcranial Doppler study of blood flow velocity in the middle cerebral arteries performed at rest and during mental activities
Quantification of regional cerebral blood flow with IMP-SPECT. Reproducibility and clinical relevance of flow values
Visually evoked blood flow response assessed by simultaneous two-channel transcranial Doppler using flow velocity averaging
Preoperative cerebral hypoperfusion in the left, not in the right, hemisphere is associated with cognitive decline after cardiac surgery
Implications for understanding ischemic stroke as a sexually dimorphic disease: the role of pial collateral circulations
Effects of task difficulty on regional cerebral blood flow: relationships with anxiety and performance
Hemodynamics and brain blood flow during posture change in younger women and postmenopausal women compared with age-matched men
Consideration of Sex Differences in the Measurement and Interpretation of Alzheimer Disease-Related Biofluid-Based Biomarkers.
The Association of Sedentary Behaviour and Cognitive Function in People Without Dementia: A Coordinated Analysis Across Five Cohort Studies from COSMIC
Comparable blood velocity changes in middle and posterior cerebral arteries during and following acute high-intensity exercise in young fit women
Sensitivity of cerebral glucose metabolism to age, gender, brain volume, brain atrophy, and cerebrovascular risk factors
Complementarity of sex differences in brain and behavior: From laterality to multimodal neuroimaging
(S)-Oxiracetam is the Active Ingredient in Oxiracetam that Alleviates the Cognitive Impairment Induced by Chronic Cerebral Hypoperfusion in Rats
Sex Differences in Brain Injury and Repair in Newborn Infants: Clinical Evidence and Biological Mechanisms
The short-term effects of sedentary behaviour on cerebral hemodynamics and cognitive performance in older adults: a cross-over design on the potential impact of mental and/or physical activity
Hemodynamic effects of sex and handedness on the Wisconsin Card Sorting Test: the contradiction between neuroimaging and behavioural results
Differentiating compensatory mechanisms associated with low tolerance to central hypovolemia in women
Structural and Functional Brain Parameters Related to Cognitive Performance Across Development: Replication and Extension of the Parieto-Frontal Integration Theory in a Single Sample.
Investigating microstructural variation in the human hippocampus using non-negative matrix factorization.
Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.
Evolution of Pluripotency
Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.
Lipidomics & Rhinovirus Infection
Lipidomics can be used to examine the lipid species involved with pathogenic conditions, such as viral associated inflammation. Discovered the latest research on Lipidomics & Rhinovirus Infection.
Spatio-Temporal Regulation of DNA Repair
DNA repair is a complex process regulated by several different classes of enzymes, including ligases, endonucleases, and polymerases. This feed focuses on the spatial and temporal regulation that accompanies DNA damage signaling and repair enzymes and processes.
Chronic Fatigue Syndrome
Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.
Torsion dystonia is a movement disorder characterized by loss of control of voluntary movements appearing as sustained muscle contractions and/or abnormal postures. Here is the latest research.
Archaeal RNA Polymerase
Archaeal RNA polymerases are most similar to eukaryotic RNA polymerase II but require the support of only two archaeal general transcription factors, TBP (TATA-box binding protein) and TFB (archaeal homologue of the eukaryotic general transcription factor TFIIB) to initiate basal transcription. Here is the latest research on archaeal RNA polymerases.
Alzheimer's Disease: MS4A
Variants within the membrane-spanning 4-domains subfamily A (MS4A) gene cluster have recently been implicated in Alzheimer's disease in genome-wide association studies. Here is the latest research on Alzheimer's disease and MS4A.
Central Pontine Myelinolysis
Central Pontine Myelinolysis is a neurologic disorder caused most frequently by rapid correction of hyponatremia and is characterized by demyelination that affects the central portion of the base of the pons. Here is the latest research on this disease.