UNASSIGNED: There was a reorganization of the brain network after stroke. Some studies have compared the characteristics of activation or functional connectivity (FC) of cortical and subcortical regions between the dominant and non-dominant hemisphere stroke.
UNASSIGNED: To analyze hemispheric dominance differences in task-state motor network properties in subacute stroke by functional near-infrared spectroscopy (fNIRS).
UNASSIGNED: Patients with first ischemic stroke in the basal ganglia within 1-3 months after onset and age- and sex-matched right-handed healthy subjects (HS) were enrolled. fNIRS with 29 channels was used to detect the oxyhemoglobin concentration changes when performing the hand grasping task. Activation patterns of motor cortex and two macroscale and two mesoscale brain network indicators based on graph theory were compared between dominant and non-dominant hemisphere stroke.
UNASSIGNED: We enrolled 17 subjects in each of left hemisphere stroke (LHS), right hemisphere stroke (RHS), and HS groups. Both patient groups showed bilateral activation. The average weighted clustering coefficient and global efficiency of patients were lower than those of healthy people, and the inter-density was higher than that of the HS group, but the significance was different between LHS and RHS groups. The intra-density changes in the RHS group were opposite to those in the LHS group. The correlation between mesoscale indicators and motor function differed between dominant and non-dominant hemisphere stroke.
UNASSIGNED: The changes in macroscale cortical network indicators were similar between the two patient groups, while those of the mesoscale indicators were different. The mesoscale brain network characteristics were affected by the severity of dysfunction to varying degrees in the LHS and RHS patients.

People with substance use disorders (SUDs) usually experience emotion dysregulation, which may be a consequence of or a risk factor for the development and maintenance of substance misuse. Despite growing evidence on emotion dysregulation among people with SUDs, relatively few studies have explored emotion dysregulation in heroin use disorder (HUD) patients.
Using event-related potentials (ERP), we compared the emotion regulation ability of 33 HUD patients and 30 healthy controls according to their average electroencephalogram amplitudes of the late positive potential (LPP) component in 400-1000 ms and 1000-2000 ms time windows, while viewing neutral and unpleasant emotional pictures, and using emotion regulation strategies (expressive suppression, cognitive reappraisal, and a combination) while viewing unpleasant pictures. We recorded their mood states and how successfully they used emotion regulation strategies in each block using 7-point scales.
Relative to healthy controls, the LPP amplitudes of HUD patients were significantly lower when viewing emotional stimuli (pearlyLPP < 0.05) and using emotion regulation strategies (all p < 0.05). The left hemisphere was more active in healthy controls (pearlyLPP < 0.05, plateLPP < 0.01); there were no differences in scalp position activation among HUD patients.
Compared to healthy controls, HUD patients\' emotional arousal and emotion regulation ability were impaired, as reflected by the LPP component. Their abnormal scalp activation pattern may imply abnormal brain activity. Future research could explore this with electroencephalogram source analysis techniques, functional magnetic resonance imaging, or other technologies. Intervention effects for emotion dysregulation in HUD treatment are also worth exploring.

Cerebral lateralization is a common feature present in many vertebrates and is often observed in response to various sensory stimuli. Numerous studies have proposed that some vertebrate species have a right hemisphere or left hemisphere dominance in response to specific types of acoustic stimuli. We investigated lateralization of eight giant pandas (Ailuropoda melanoleuca) by using a head turning paradigm and twenty-eight acoustic stimuli with different emotional valences which included twenty-four conspecific and four non-conspecific acoustic stimuli (white noise, thunder, and vocalization of a predator). There was no significant difference in auditory laterality in responses to conspecific or non-conspecific sounds. However, the left cerebral hemisphere processed the positive stimuli, whereas neither of the two hemispheres exhibited a preference for processing the negative stimuli. Furthermore, the right hemisphere was faster than the left hemisphere in processing emotional stimuli and conspecific stimuli. These findings demonstrate that giant pandas exhibit lateralization in response to different acoustic stimuli, which provides evidence of hemispheric asymmetry in this species.