keyword
MENU ▼
Read by QxMD icon Read
search

Cingulate motor

keyword
https://www.readbyqxmd.com/read/28822071/imaging-the-etiology-of-apathy-anxiety-and-depression-in-parkinson-s-disease-implication-for-treatment
#1
REVIEW
Stephane Thobois, Stephane Prange, Véronique Sgambato-Faure, Léon Tremblay, Emmanuel Broussolle
Apathy, depression, and anxiety are among the most important non-motor signs of Parkinson's disease (PD). This may be encountered at early stages of illness and represent a major source of burden. Understanding their pathophysiology is a major prerequisite for efficient therapeutic strategies. Anatomical and metabolic imaging studies have enabled a breakthrough by demonstrating that widespread abnormalities within the limbic circuits notably the orbitofrontal and anterior cingulate cortices, amygdala, thalamus, and ventral striatum are involved in the pathophysiology of depression, anxiety, and apathy in PD...
August 18, 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28821668/sensory-biased-and-multiple-demand-processing-in-human-lateral-frontal-cortex
#2
Abigail L Noyce, Nishmar Cestero, Samantha W Michalka, Barbara G Shinn-Cunningham, David C Somers
The functionality of much of human lateral frontal cortex (LFC) has been characterized as 'multiple demand' as these regions appear to support a broad range of cognitive tasks. In contrast to this domain-general account, recent evidence indicates that portions of LFC are consistently selective for sensory modality. Michalka et al. (2015) reported two bilateral regions that are biased for visual attention, superior precentral sulcus (sPCS) and inferior precentral sulcus (iPCS), interleaved with two bilateral regions that are biased for auditory attention, transverse gyrus intersecting precentral sulcus (tgPCS) and caudal inferior frontal sulcus (cIFS)...
August 8, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28813949/monitoring-brain-potentials-to-guide-neurorehabilitation-of-tracking-impairments
#3
Boris Yazmir, Miriam Reiner
Motor impairments come in different forms. One class of motor impairments, relates to accuracy of tracking a moving object, as, for instance, when chasing in an attempt to catch it. Here we look at neural signals associated with errors in tracking, and the implications for brain-computer-interfaces that target impairment-tailored rehabilitation. As a starting point, we characterized EEG signals evoked by tracking errors during continuous natural motion, in healthy participants. Participants played a virtual 3D, ecologically valid haptic tennis game, and had to track a moving tennis ball in order to hit and send the ball towards the opponent's court...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813229/cortical-networks-for-correcting-errors-in-sensorimotor-synchronization-depend-on-the-direction-of-asynchrony
#4
K J Jantzen, Benjamin R Ratcliff, McNeel G Jantzen
Recent work provides clues that different cortical mechanisms may be employed when correcting for errors in sensorimotor synchronization that increase tap-tone asynchrony compared with those that decrease it. The authors tested this hypothesis by recording 64-channel electroencephalography while participants synchronized with an auditory metronome. We systematically introduced positive and negative phase-shift perturbations that were either liminal (10%) and subliminal (3%). We used a distributed source modeling approach to evaluate oscillatory activity and connectivity of discrete cortical sources...
August 16, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28809854/in-the-grip-of-worry-cerebral-blood-flow-changes-during-worry-induction-and-reappraisal-in-late-life-generalized-anxiety-disorder
#5
H T Karim, D L Tudorascu, M A Butters, S Walker, H J Aizenstein, C Andreescu
Severe worry includes a complex blend of maladaptive affective and cognitive processes. Contrary to other forms of anxiety, there is no consensus in the field regarding the neural basis of worry. To date, no study has looked at neural patterns associated specifically with in-scanner induction and reappraisal of worry. In this study, we attempt to describe distinct components of the 'neural phenomenology' of worry: induction, maintenance, severity and reappraisal, by using a personalized, in-scanner worry script...
August 15, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28808819/separating-the-idea-from-the-action-a-sloreta-study
#6
Martin Rakusa, Pierpaolo Busan, Piero Paolo Battaglini, Janez Zidar
Simple imaginary movements activate similar cortical and subcortical areas to actual movements, chiefly in the sensory-motor network. However, only a few studies also examined the imagery of more skilful movements such as reaching. Ten volunteers performed reaching movements or imagined the same movements. EEG was simultaneously recorded and analysed with sLORETA, which compared the preparation for actual and imagined reaching with respect to their baseline and between tasks. Major differences between them were found at three time intervals after target presentation, always in favour of the actual reaching condition...
August 14, 2017: Brain Topography
https://www.readbyqxmd.com/read/28801826/brain-activity-changes-in-somatosensory-and-emotion-related-areas-with-medial-patellofemoral-ligament-deficiency
#7
Masaru Kadowaki, Taku Tadenuma, Nobuyuki Kumahashi, Yuji Uchio
BACKGROUND: Patellar instability with medial patellofemoral ligament (MPFL) deficiency is a common sports injury among young people. Although nonoperative and surgical treatment can provide stability of the patella, patients often have anxiety related to the knee. We speculate that neural dysfunction may be related to anxiety in these patients; however, the mechanism in the brain that generates this anxiety remains unknown. QUESTIONS/PURPOSES: (1) How does brain activity in patients with MPFL deficiency change in the areas related to somatic sensation against lateral shift of the patella? (2) How does patella instability, which can lead to continuous fear or apprehension for dislocation, influence brain activity in the areas related to emotion? METHODS: Nineteen patients with MPFL deficiency underwent surgical reconstruction in our hospital from April 2012 to March 2014...
August 11, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28801619/repetitive-motor-cortex-stimulation-reinforces-the-pain-modulation-circuits-of-peripheral-neuropathic-pain
#8
Myeounghoon Cha, Sun Woo Um, Minjee Kwon, Taick Sang Nam, Bae Hwan Lee
Recent evidence indicates that motor cortex stimulation (MCS) is a potentially effective treatment for chronic neuropathic pain. However, the neural mechanisms underlying the attenuated hyperalgesia after MCS are not completely understood. In this study, we investigated the neural mechanism of the effects of MCS using an animal model of neuropathic pain. After 10 daily sessions of MCS, repetitive MCS reduced mechanical allodynia and contributed to neuronal changes in the anterior cingulate cortex (ACC). Interestingly, inhibition of protein kinase M zeta (PKMζ), a regulator of synaptic plasticity, in the ACC blocked the effects of repetitive MCS...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28790831/spontaneous-alterations-of-regional-brain-activity-in-patients-with-adult-generalized-anxiety-disorder
#9
Likun Xia, Shumei Li, Tianyue Wang, Yaping Guo, Lihong Meng, Yunping Feng, Yu Cui, Fan Wang, Jian Ma, Guihua Jiang
OBJECTIVE: We aimed to examine how spontaneous brain activity might be related to the pathophysiology of generalized anxiety disorder (GAD). PATIENTS AND METHODS: Using resting-state functional MRI, we examined spontaneous regional brain activity in 31 GAD patients (mean age, 36.87±9.16 years) and 36 healthy control participants (mean age, 39.53±8.83 years) matched for age, education, and sex from December 2014 to October 2015. We performed a two-sample t-test on the voxel-based analysis of the regional homogeneity (ReHo) maps...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28783763/mapping-altered-brain-connectivity-and-its-clinical-associations-in-adult-moyamoya-disease-a-resting-state-functional-mri-study
#10
Ken Kazumata, Khin Khin Tha, Haruto Uchino, Masaki Ito, Naoki Nakayama, Takeo Abumiya
Detection of subtle ischemic injuries in moyamoya disease may enable optimization of timing of revascularization surgery, and could potentially improve functional outcomes. Resting-state functional magnetic resonance imaging (rs-fMRI) is widely used to study functional organization of the brain, but it remains unclear whether rs-fMRI could elucidate distinct characteristics in moyamoya disease. Here, we aimed to determine changes in a conventional rs-fMRI measure and analyze any associations with clinical symptoms and cerebral hemodynamics...
2017: PloS One
https://www.readbyqxmd.com/read/28772233/functional-mri-based-identification-of-brain-regions-activated-by-mechanical-noxious-stimulation-and-modulatory-effect-of-remifentanil-in-cats
#11
Dai Nagakubo, Yuji Hamamoto, Daisuke Hasegawa, Masatoshi Kamata, Tomoya Iizuka, Kanako Muta, Naoki Fujita, Takayuki Nakagawa, Ryohei Nishimura
This study was conducted to identify the brain regions corresponding to mechanical noxious stimulation in cats using functional magnetic resonance imaging (fMRI) and to investigate the modulatory effect of remifentanil on the activation of these regions. Six healthy cats were anesthetized using a constant-rate infusion of alfaxalone. Cats were allocated to one of three treatment groups: remifentanil 0 (saline), 0.25, and 0.5μg/kg/min. A 3.0-T MRI unit was used to collect fMRI data. During the fMRI scanning, mechanical noxious stimulation was applied by tail clamping...
July 24, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28769784/cortical-surface-thickness-in-the-middle-aged-brain-with-white-matter-hyperintense-lesions
#12
Ying Zhuang, Xianjun Zeng, Bo Wang, Muhua Huang, Honghan Gong, Fuqing Zhou
Background and purpose: Previous voxel-based morphometry (VBM) studies have suggested that cortical atrophy is regionally distributed in middle-aged subjects with white matter hyperintense (WMH) lesions. However, few studies have assessed cortical thickness in middle-aged WMH subjects. In this study, we examined cortical thickness as well as cortical morphometry associated with the presence of WMH lesion load in middle-aged subjects. Participants and methods: Thirty-six middle-aged subjects with WMH lesions (WMH group) and without clinical cognitive impairment, and 34 demographically matched healthy control subjects (HCS group) participated in the study...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28765070/prefrontal-connections-of-the-perirhinal-and-postrhinal-cortices-in-the-rat
#13
Eunkyu Hwang, Bailey S Willis, Rebecca D Burwell
Knowing how prefrontal regions interact with medial temporal lobe structures is important for understanding memory and cognition. Using anterograde and retrograde tract tracing methods in the rat, we report a detailed study of the perirhinal (PER) and postrhinal (POR) connections with the lateral, ventrolateral, and medial orbitofrontal cortices (ORBl, ORBvl, ORBm), infralimbic and prelimbic cortices (IL, PL), ventral and dorsal anterior cingulate cortices (ACAv, ACAd), and secondary motor cortex (MOs). Our analyses included the topography and laminar patterns of these connections...
July 29, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28763879/-study-of-fraction-amplitude-of-low-frequency-fluctuation-on-resting-state-functional-magnetic-resonance-imaging-in-adultperipheral-facial-paralysis
#14
Y J Zhu, G L Ma, T B Song, L Du, R C Guo, S L Sun, H Li, L G Sun
Objective: To analysis the change of brain functional activity in the left and right peripheral facial paralysis by using resting-state functional magnetic resonance imaging (R-fMRI) of fraction amplitude of low frequency fluctuation(fALFF) measurement technique, and research the abnormal brain region with different side patients whether there are differences. Methods: A total of 43 patients with peripheral facial paralysis patients (patient groups, divided into left / right two subgroups) and 21 healthy volunteers (control group) in this study...
July 18, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28760866/learning-predictive-statistics-strategies-and-brain-mechanisms
#15
Rui Wang, Yuan Shen, Peter Tino, Andrew Welchman, Zoe Kourtzi
When immersed in a new environment we are challenged to decipher initially incomprehensible streams of sensory information. Yet, quite rapidly, the brain finds structure and meaning in these incoming signals, helping us to predict and prepare ourselves for future actions. This skill relies on extracting the statistics of event streams in the environment that contain regularities of variable complexity: from simple repetitive patterns to complex probabilistic combinations. Here, we test the brain mechanisms that mediate our ability to adapt to the environment's statistics and predict upcoming events...
July 31, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28755401/association-between-the-scores-of-the-japanese-version-of-the-brief-assessment-of-cognition-in-schizophrenia-and-whole-brain-structure-in-patients-with-chronic-schizophrenia-a-voxel-based-morphometry-and-diffusion-tensor-imaging-study
#16
Shinsuke Hidese, Miho Ota, Junko Matsuo, Ikki Ishida, Moeko Hiraishi, Toshiya Teraishi, Kotaro Hattori, Hiroshi Kunugi
AIM: The brief assessment of cognition in schizophrenia (BACS) is a concise tool designed to evaluate cognitive deficits in schizophrenia. We examined the possible association between BACS scores and whole-brain structure, as observed using magnetic resonance imaging (MRI) with a relatively large sample. METHODS: The study sample comprised 116 patients with schizophrenia (mean age, 39.3 ± 11.1 years; 66 men) and 118 healthy controls (40.0 ± 13.6; 58 men) who completed the Japanese version of the BACS (BACS-J)...
July 29, 2017: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28750252/neural-correlates-of-bilingual-language-control-during-interlingual-homograph-processing-in-a-logogram-writing-system
#17
Ming-Che Hsieh, Hyeonjeong Jeong, Kelssy Hitomi Dos Santos Kawata, Yukako Sasaki, Hsun-Cheng Lee, Satoru Yokoyama, Motoaki Sugiura, Ryuta Kawashima
Bilingual studies using alphabetic languages have shown parallel activation of two languages during word recognition. However, little is known about the brain mechanisms of language control during word comprehension with a logogram writing system. We manipulated the types of words (interlingual homographs (IH), cognates, and language-specific words) and the types of participants (Chinese (L1)-Japanese (L2) bilinguals vs. Japanese monolinguals). Greater activation was found in the bilateral inferior frontal gyri, supplementary motor area, caudate nucleus and left fusiform gyrus, when the bilinguals processed IH, as compared to cognates...
July 24, 2017: Brain and Language
https://www.readbyqxmd.com/read/28746187/research-of-cerebral-activation-in-uygur-speaking-and-chinese-speaking-participants-during-verb-generation-task-with-functional-magnetic-resonance-imaging
#18
COMPARATIVE STUDY
Yanling Xi, Ling Liu, Grace Hao, Zulipinuer Abudusadike, Chunhui Jiang, Junran Zhang, Baolan Wang
The aims are to investigate and compare the activated cerebral regions of Uygur-speaking and Chinese-speaking participants during verb generation task.A total of 31 cases of Uygur and 28 cases of Han healthy volunteers were enrolled. They were requested to take verb generation tasks. Blood oxygenation level-dependent functional magnetic resonance imaging (BOLD-fMRI) was performed. The fMRI images were collected and activated brain regions were analyzed.In Chinese-speaking participants, the main activated cerebral regions were as follows: the left caudate nucleus, the left occipital gyrus, the left fusiform gyrus, bilateral supplementary motor area (BA8/ 6), the left BA32, left precuneus, the left superior parietal lobule, the left inferior parietal lobule (BA7), the left angular gyrus, the right side of the central gyrus (BA9), the left inferior frontal gyrus triangular section, the right pars opercularis gyri frontalis inferiorista, and bilateral cerebellum...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28743011/posterior-parietal-cortex
#19
Jonathan R Whitlock
The posterior parietal cortex, along with temporal and prefrontal cortices, is one of the three major associative regions in the cortex of the mammalian brain. It is situated between the visual cortex at the caudal pole of the brain and the somatosensory cortex just behind the central sulcus. Technically, any cortex covered by the parietal bone is referred to as 'parietal cortex', but the posterior sector, formally referred to as posterior parietal cortex, is indeed its own functional section of cortex, consisting of Brodmann's areas 5, 7, 39, and 40 in humans, areas 5 and 7 in macaques, and area 7 in rodents (Figure 1)...
July 24, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28735913/gray-matter-abnormalities-of-the-dorsal-posterior-cingulate-in-sleep-walking
#20
Anna Heidbreder, Ambra Stefani, Elisabeth Brandauer, Ruth Steiger, Christian Kremser, Elke R Gizewski, Peter Young, Werner Poewe, Birgit Högl, Christoph Scherfler
OBJECTIVE: This study aimed to determine whether voxel-based analysis of T1 weighted magnetic resonance imaging (MRI) and diffusion tensor imaging is able to detect alterations of gray and white matter morphometry as well as measures of mean diffusivity and fractional anisotropy in patients with non-rapid eye movement parasomnia. METHODS: 3 Tesla MRI was performed in 14 drug-free, polysomnography-confirmed adult patients with non-rapid eye movement parasomnia (age: 29 ± 4...
August 2017: Sleep Medicine
keyword
keyword
59460
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"