In this paper an optimized fuzzy logic based segmentation for abnormal MRI brain images analysis is presented. A conventional fuzzy c-means (FCM) technique does not use the spatial information in the image. In this research, we use a FCM algorithm that incorporates spatial information into the ...
University of California Davis School of Medicine, Sacramento, CA, USA; 3Neuroimaging Research Branch, National Institute on Drug Abuse, Intramural Research Program, Baltimore, MD, USA Psychosis has been associated with aberrant brain activity concurrent with both the anticipation and integration of mone...
Contrary to predictions about a valence-specific effect of negative stimuli, we found no valence by group by drug interactions, neither in the dmPFC nor other regions throughout the brain. All of the significant effects were driven by the more robust signal given by contrasts of pictures with ...
" said John Krystal, MD, Editor ofBiological Psychiatry. "Longitudinal neuroimaging studies are extremely challenging to conduct. Here, by combining data from 14 sites, we get one of the clearest pictures we have of the neurotoxic impact of bipolar disorder, particularly ...
Stimulus pictures were presented for 1600 milliseconds, followed by feedback for 900 milliseconds. If participants did not respond within the 1600-millisecond stimulus presentation, the feedback screen was replaced by the message “please respond faster.” Jittered fixation trials were presented for ...
Psychosis has been associated with aberrant brain activity concurrent with both the anticipation and integration of monetary outcomes. The extent to which abnormal reward-related neural signals can be observed in chronic, medicated patients with schizoph
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In the NOGO block, pictures of ‘lions’ and ‘giraffes’ were randomly rendered one by one in the centre of the screen at a 1:1 frequency. Participants were instructed to press the space bar quickly when ‘lion’ was presented and to withhold the response when ‘giraffe’ was presented ...
(1)推理判断题。根据第二段The brain science behind Alzheimer's is complex,but CT and MRI scans suggest that poisonous changes occur in the brain,including the abnormal buildup of proteins called amyloid plaques and tau tangles.(阿尔茨海默氏症背后的脑
Functional MRI of the Brain FOD: fiber orientation distribution FOV: field of view FRT: Benton Facial Recognition Test FSL: FMRIB software library GM: gray matter IFO: inferior fronto-occipital fasciculus ILF: inferior longitudinal fasciculus LI: laterality index MD: mean diffusivity ...