Neural oscillations are electrical activities of the brain measurable at different frequencies. This paper studies interaction between fast and slow processes in brain. We recorded signals intracranially from simple Wistar rats, performed signal processing, computed correlation envelopes high-frequency gamma rhythm a low-frequency signal. The analysis shows that (delta rhythm) modulates with sm...

introduction: direction and latency of electrical connectivity between different sites of brain explains brain neural functionality. we compared efficiency of cross correlation and phase locking methods in time lag estimation which are based on local field potential (lfp) and lfpspike signals, respectively. methods: signals recorded from mt area of a macaque’s brain was used in a simulation app...

Abstract The brain signals can be converted to a command control some external device using brain-computer interface system. unimodal BCI system has limitations like the compensation of accuracy with increase in number classes. In addition this many acquisition systems are not robust for real-time application because poor spatial or temporal resolution. To overcome this, hybrid technology that ...

conclusion the minimum concentration of triolein emulsion required to increase vascular permeability adequately with minimal brain edema in a cat model was 0.5%. results the lesion hemispheres showed mild hyperintensity due to edema on t2-weighted images, and contrast enhancement on post-contrast t1-weighted images in cats of group 1-5. cers showed statistically significant differences between ...