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Frontal Lobe

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1. Neonatal frontal lobe: sonographic reference values and suggested clinical use. (Abstract)

Neonatal frontal lobe: sonographic reference values and suggested clinical use. Intraventricular hemorrhage (IVH) and post-hemorrhagic hydrocephalus (PHHC) remain major problems among premature infants. The need, timing and type of ventricular drainage are based on sonographic ventricular measures, without assessment of the dimensions of the frontal lobe. The aim of our study was to establish new reference values for sonographic frontal lobe cortico-ventricular thickness (FL-CVT) in a large (...) cohort of infants.All normal head ultrasound scans that were performed in our center during the first 4 days of life between January 2014 and December 2016 were retrospectively evaluated.Scans were evaluated and plotted to create a reference range for the thickness of the frontal lobe in normal infants of 24-40 weeks' gestation. The FL-CVT increased significantly during gestation. Calculating the area under the curve of the FL-CVT in 9 infants with post-hemorrhagic-hydrocephalus (PHHC) reveals a 20

2020 Pediatric Research

2. Unilateral akathisia and choreoathetosis as an unusual presentation of a frontal lobe dermoid cyst. (Abstract)

Unilateral akathisia and choreoathetosis as an unusual presentation of a frontal lobe dermoid cyst. Objective: To consider an unusual presentation of a frontal lobe dermoid cyst. Intracranial masses very rarely present with movement disorders. We describe a highly unusual presentation of an intracranial dermoid with unilateral choreoathetosis, akathisia and facial tics. Material: A 63-year-old man presented with left-sided akathisia and tardive dyskinesia of his upper limb, attributed (...) to a dermoid cyst in the right frontal lobe. Resection of the cyst led to a complete resolution of his symptoms without neurological deficit. Conclusion: Pathogenic mechanisms of such symptoms may include compression and ischaemia of the basal ganglia and other nigrostriatal structures, as well as dysfunction of the supplementary motor area and mesolimbic dopaminergic pathways.

2020 British Journal of Neurosurgery

3. Effect of childhood physical abuse on social anxiety is mediated via reduced frontal lobe and amygdala-hippocampus complex volume in adult clinical high-risk subjects. (Abstract)

Effect of childhood physical abuse on social anxiety is mediated via reduced frontal lobe and amygdala-hippocampus complex volume in adult clinical high-risk subjects. Childhood adverse experiences (CAE) are associated with clinical psychiatric disorders and symptoms, and with volumetric abnormalities in the amygdala-hippocampus complex (AmHiC) and frontal lobe (FroL) in adulthood.To study whether CAE are associated with reduced AmHiC and FroL and whether these structures mediate the effect (...) with reduced frontal lobe and amygdala-hippocampus complex volume in adult subjects with psychotic symptoms. Reduced frontal lobe and amygdala-hippocampus complex volume mediate the effect of physical abuse on social anxiety in high-risk patients. The effect of physical abuse on depression-independent social anxiety is mediated via reduced frontal lobe.Copyright © 2020. Published by Elsevier B.V.

2020 Schizophrenia Research

4. The understanding of mental states and the cognitive phenotype of frontal lobe epilepsy. (Abstract)

The understanding of mental states and the cognitive phenotype of frontal lobe epilepsy. Previous studies of frontal lobe epilepsy (FLE) have documented different impairments of theory of mind (ToM), while the study of frontal lobe (FL) lesion without seizures has produced inconsistent results. Given the role played by the FLs in ToM, we evaluated this and other functions in patients with FLE with and without FL lesions. The main objective was to clarify the salience of ToM impairment

2020 Epilepsia

5. Fibroblast growth factor23 is associated with axonal integrity and neural network architecture in the human frontal lobes. Full Text available with Trip Pro

Fibroblast growth factor23 is associated with axonal integrity and neural network architecture in the human frontal lobes. Elevated levels of FGF23 in individuals with chronic kidney disease (CKD) are associated with adverse health outcomes, such as increased mortality, large vessel disease, and reduced white matter volume, cardiovascular and cerebrovascular events. Apart from the well-known link between cardiovascular (CV) risk factors, especially diabetes and hypertension, and cerebrovascular (...) hitherto not been investigated. In this study, we aimed to determine the association between FGF23, and white matter integrity in a cohort of 50 participants with varying degrees of CV risk burden, using high resolution structural human brain connectomes constructed from MRI diffusion images. We observed that increased FGF23 was associated with axonal loss in the frontal lobe, leading to a fragmentation of white matter network organization. This study provides the first description of the relationship

2018 PLoS ONE

6. The interpreter's brain during rest - Hyperconnectivity in the frontal lobe. Full Text available with Trip Pro

The interpreter's brain during rest - Hyperconnectivity in the frontal lobe. Language in its highest complexity is a unique human faculty with simultaneous translation being among the most demanding language task involving both linguistic and executive functions. In this context, bilingually grown up individuals as well as simultaneous interpreters (SIs) represent appropriate groups for studying expertise-related neural adaptations in the human brain. The present study was performed to examine

2018 PLoS ONE

7. Frontal lobe meningioma mimicking preeclampsia: A case study Full Text available with Trip Pro

Frontal lobe meningioma mimicking preeclampsia: A case study We report a case of a left frontal lobe meningioma presenting in a woman with proteinuric preeclampsia in her first term pregnancy. The patient had a background of antepartum migraines that resolved in the second trimester of pregnancy. Postpartum, she required urgent surgery and sustained convulsions after surgery. She had no residual disease and has had another successful pregnancy. This case highlights the importance of cerebral

2017 Obstetric medicine

8. Frontal lobe <sup>1</sup>H MR spectroscopy in asymptomatic and symptomatic <i>MAPT</i> mutation carriers. Full Text available with Trip Pro

Frontal lobe 1H MR spectroscopy in asymptomatic and symptomatic MAPT mutation carriers. To determine the frontal lobe proton magnetic resonance spectroscopy (1H MRS) abnormalities in asymptomatic and symptomatic carriers of microtubule-associated protein tau (MAPT) mutations.We recruited patients with MAPT mutations from 5 individual families, who underwent single voxel 1H MRS from the medial frontal lobe at 3T (n = 19) from the Longitudinal Evaluation of Familial (...) (p = 0.006) and NAA/mI (p < 0.001) ratios decreased, accompanied by an increase in mI/Cr ratio (p = 0.001), as the ages of carriers approached and passed the age at symptom onset.Frontal lobe neurochemical alterations measured with 1H MRS precede the symptom onset in MAPT mutation carriers. Frontal lobe 1H MRS is a potential biomarker for early neurodegenerative processes in MAPT mutation carriers.© 2019 American Academy of Neurology.

2019 Neurology

9. Lower myelin-water content of the frontal lobe in childhood absence epilepsy. Full Text available with Trip Pro

Lower myelin-water content of the frontal lobe in childhood absence epilepsy. The frontal lobe in childhood absence epilepsy (CAE) might be affected due to the suggested involvement of the frontal lobe during absence seizures and reports on attentional deficits. Previously, subtle white matter abnormalities have been reported in CAE. However, the impact of one of the most characteristic components of the white matter, the myelin content, remains underdetermined. Therefore, this study (...) ) in the frontal, temporal, parietal, occipital, and insular lobes. A linear regression model including age and sex as covariates was used to investigate group differences. Furthermore, the relationship of MWF with cognitive performance and epilepsy characteristics was determined.The frontal lobe revealed a significantly lower myelin-water content in children with CAE compared to controls over the developmental age range of 6-12 years (5.7 ± 1.0% vs 6.6 ± 1.1%, P = 0.02). This association was not found for any

2019 Epilepsia

10. Influence of collateral circulation on cerebral blood flow and frontal lobe cognitive function in patients with severe internal carotid artery stenosis. Full Text available with Trip Pro

Influence of collateral circulation on cerebral blood flow and frontal lobe cognitive function in patients with severe internal carotid artery stenosis. This study aimed to investigate the cerebral blood flow (CBF) and frontal lobe cognitive function in severe internal carotid artery (ICA) stenosis patients with different types of collateral circulation.One hundred twenty-six patients with severe unilateral ICA stenosis were enrolled. Digital subtraction angiography (DSA) was performed (...) to recruit patients with one of three common types of collateral circulation: anterior communicating artery (AcoA), posterior communicating artery (PcoA) and ophthalmic artery (OA). The hemodynamic parameters of the middle cerebral artery (MCA) were measured using transcranial Doppler (TCD), and the individual frontal lobe cognitive attention functions were evaluated using Word Fluency Test, Trail-Making Test (TMT), Digit Span, and Stroop Color Word Test (SCWT). The correlation between hemodynamic

2019 BMC Neurology

11. Frontal lobe functioning during a simple response conflict task in first-episode psychosis and its relationship to treatment response. Full Text available with Trip Pro

Frontal lobe functioning during a simple response conflict task in first-episode psychosis and its relationship to treatment response. Prior functional magnetic resonance imaging (fMRI) studies have investigated the neural mechanisms underlying cognitive control in patients with psychosis with findings of both hypo- and hyperfrontality. One factor that may contribute to inconsistent findings is the use of complex and polyfactorial tasks to investigate frontal lobe functioning. In the current (...) following treatment. All findings remained significant after covarying for task performance. Intact performance on this relatively parsimonious task was associated with frontal hyperactivity suggesting the need for patients to utilize greater neural resources to achieve task performance comparable to healthy individuals. Moreover, frontal hyperactivity observed using a simple fMRI task may provide a biomarker for predicting treatment response in first-episode psychosis.

2019 Brain imaging and behavior Controlled trial quality: uncertain

12. Atypical frontal lobe seizure as the first manifestation of gall-bladder cancer: a case report. Full Text available with Trip Pro

Atypical frontal lobe seizure as the first manifestation of gall-bladder cancer: a case report. Gall bladder cancer (GBC) is associated with abdominal pain, lump, nausea, vomiting, and jaundice due to either gall bladder mass or the involved adjacent peritoneal structures. Gall bladder cancer presenting as refractory epilepsy is rare. Here we report a young female GBC patient who presented with an atypical and refractory frontal lobe seizures as the first manifestation of gall bladder cancer.A (...) 46 years young female presented first time to the hospital with uncontrolled seizures and headache in 5 months duration. Seizures were very atypical in semiology with ptosis and mydriasis to either side along with ipsilateral ocular deviation. The episodes were bilateral but right eyelid ptosis, mydriasis and right horizontal conjugate deviation were frequent. MRI brain showed encephalomalacia in the left frontal region on axial T2 and coronal T1 weighted images without any enhancement

2019 BMC Neurology

13. Association between Cyclic Meditation and Creative Cognition: Optimizing Connectivity between the Frontal and Parietal Lobes. Full Text available with Trip Pro

Association between Cyclic Meditation and Creative Cognition: Optimizing Connectivity between the Frontal and Parietal Lobes. Important stages of creativity include preparation, incubation, illumination, and verification. Earlier studies have reported that some techniques of meditation promote creativity but have not specified which stage is enhanced. Here, we report the influence of cyclic meditation (CM) on creative cognition measured by a divergent thinking task. Our aim was to determine (...) activity during creativity compared controls who showed delta activity. Furthermore, the experimental group showed more activation of frontal and parietal regions (EEG leads F3, F4 and P3, P4) than controls, i.e., the regions of the executive network responsible for creative cognition, our particular regions of interest where specialized knowledge is being stored.Improvement on creativity test performance indicates that CM increases association and strengthens the connectivity between frontal

2019 International journal of yoga Controlled trial quality: uncertain

14. Altered structural and causal connectivity in frontal lobe epilepsy. Full Text available with Trip Pro

Altered structural and causal connectivity in frontal lobe epilepsy. Albeit the few resting-state fMRI neuroimaging studies in frontal lobe epilepsy (FLE) patients, these studies focused on functional connectivity. The aim of this current study was to examine the effective connectivity based on voxel-based morphometry in FLE patients.Resting-state structural and functional magnetic resonance imaging (fMRI) data were acquired from 19 FLE patients and 19 age and gender-matched healthy controls (...) as well as altered causality with increased, and decreased causal outflow from the right caudate (seed region) to inferior frontal gyrus-triangular, from bilateral putamen (seed regions) to right middle frontal gyrus and frontal gyrus medial-orbital representing the frontal executive areas, respectively. Also, significantly increased and decreased inflow from left calcarine to right caudate and from cerebellum_6 and vermis_6 to bilateral putamen, respectively. Moreover, we found that the causal

2019 BMC Neurology

15. The association between frontal lobe perfusion and depressive symptoms in later life. Full Text available with Trip Pro

The association between frontal lobe perfusion and depressive symptoms in later life. Deficits in frontal lobe perfusion have been demonstrated in late-life depression; however, studies to date have generally involved small numbers, used neuroimaging rather than bedside testing and have not controlled for important covariates.AimsWe aimed to examine the association between depressive symptoms and frontal lobe perfusion during standing, in a large cohort of community-dwelling older (...) people.Participants aged ≥50 years underwent continuous measurement of orthostatic blood pressure by finometry, and frontal lobe perfusion by near-infrared spectroscopy. Depressive symptoms were assessed by the eight-item Centre for Epidemiological Studies Depression Scale. Real-time frontal lobe cerebral oxygenation was measured by the Portalite System, detecting changes in frontal lobe perfusion and reporting a tissue saturation index score.Almost 8% (209 out of 2616) had clinically significant depressive

2019 British Journal of Psychiatry

16. A case series of lacosamide as adjunctive therapy in refractory sleep-related hypermotor epilepsy (previously nocturnal frontal lobe epilepsy). Full Text available with Trip Pro

A case series of lacosamide as adjunctive therapy in refractory sleep-related hypermotor epilepsy (previously nocturnal frontal lobe epilepsy). The aim of this study was to evaluate the efficacy and tolerability of open-label lacosamide in patients with refractory sleep-related hypermotor epilepsy. The study was a case review of eight patients with refractory sleep-related hypermotor epilepsy treated with lacosamide. Seizure diaries compared the mean baseline seizure frequency with the most

2018 Journal of sleep research Controlled trial quality: uncertain

17. Effects of movement music therapy with a percussion instrument on physical and frontal lobe function in older adults with mild cognitive impairment: a randomized controlled trial. Full Text available with Trip Pro

Effects of movement music therapy with a percussion instrument on physical and frontal lobe function in older adults with mild cognitive impairment: a randomized controlled trial. We tested the hypothesis that performing a rhythmic physical task accompanied by a cognitive task, such as multitask movement music therapy (MMT) involving repetitive rhythmic movement with a musical instrument (the Naruko clapper), may improve pre-frontal cortex (PFC) function and cognitive performance.Forty-five (...) older adult participants with MCI (74.62 ± 5.05 years) participated in this randomized, controlled, single-blind intervention trial. 35 were assigned to the MMT group and 10 to the control STT group. Before and after the 12-week exercise program, we administered six physical function tests, the Frontal Assessment Battery (FAB), and measured relative oxyhemoglobin concentrations using 45-multichannel functional near-infrared spectroscopy as a reflection of hemodynamic responses in the PFC.We observed

2018 Aging & mental health Controlled trial quality: uncertain

18. Neuronal Injury and Glial Changes Are Hallmarks of Open Field Blast Exposure in Swine Frontal Lobe. Full Text available with Trip Pro

Neuronal Injury and Glial Changes Are Hallmarks of Open Field Blast Exposure in Swine Frontal Lobe. With the rapid increase in the number of blast induced traumatic brain injuries and associated neuropsychological consequences in veterans returning from the operations in Iraq and Afghanistan, the need to better understand the neuropathological sequelae following exposure to an open field blast exposure is still critical. Although a large body of experimental studies have attempted to address (...) to all the conditions without blast exposure. After a 3-day survival period, the brain was harvested and sections from the frontal lobes were processed for histological assessment of neuronal injury and glial reactivity changes. Significant neuronal injury in the form of beta amyloid precursor protein immunoreactive zones in the gray and white matter was observed in the frontal lobe sections from both the blast exposure groups. A significant increase in the number of astrocytes and microglia was also

2017 PLoS ONE

19. Frontal lobe epileptic seizures are accompanied by elevated pitch during verbal communication. Full Text available with Trip Pro

Frontal lobe epileptic seizures are accompanied by elevated pitch during verbal communication. The objective of our study was to assess alterations in speech as a possible localizing sign in frontal lobe epilepsy. Ictal speech was analyzed in 18 patients with frontal lobe epilepsy (FLE) during seizures and in the interictal period. Matched identical words were analyzed regarding alterations in fundamental frequency (ƒo) as an approximation of pitch. In patients with FLE, ƒo of ictal utterances (...) in frontal lobe seizures with origin in either hemisphere, suggesting a bilateral involvement to the planning of speech production, in contrast to a more right-sided lateralization of pitch perception in prosodic processing.Wiley Periodicals, Inc. © 2018 International League Against Epilepsy.

2018 Epilepsia

20. Periventricular nodular heterotopia in 22q11.2 deletion and frontal lobe migration Full Text available with Trip Pro

Periventricular nodular heterotopia in 22q11.2 deletion and frontal lobe migration We aimed to delineate the distribution of periventricular nodular heterotopia (PNH) in patients with 22q11.2 microdeletion syndrome (22q11.2DS) and place this in the context of other genetic forms of PNH.We retrospectively analyzed brain imaging and postmortem data available for adult patients with 22q11.2DS. We included only those with good quality MRI data (n = 29) in addition to two patients with PNH (...) identified through postmortem studies. We also reviewed the pattern of PNH in all genetic conditions reported with this phenotype.Of the total seven patients (M = 4, F = 3; age: 19-61 years) identified to have PNH, six had a history of seizures, six had schizophrenia, six had variable levels of intellectual disability, and two had obsessive compulsive disorder. In all seven patients, the nodules were located over the dorsal pole of the frontal horn of the lateral ventricles. The nodules were small

2018 Annals of clinical and translational neurology

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