Introduction: Barrel cortex of rodents is responsible for sensory information processing from muzzle whiskers. Locus coeruleus (LC) as the main source of norepinephrine (NE) in the cortex, is effective on the sensory information processing. Methods: Rats were divided to 2 groups. One group underwent sensory deprivation (P4) and the other group served as control and did not undergo sensory d...

Stimulus response latency is the delay in the onset of stimulus-evoked neuronal activity. We develop maximum likelihood and least squares estimators of stimulus response latency and present a comparison of the performance of these methods with estimators commonly used in the neuroscience literature. The formal statistical change-point estimation problem is nontrivial due to the inclusion of a '...

the objective of the present investigation was to assess the possible involvement ofgabaergic mechanism in analgesic effect of aqueous extract of origanum vulgare (org)in a rat model of acute pain test. sixty-three anaesthetized male wistar rats (200-250 g) werecannulated into the left ventricle. five to seven days after the recovery from surgery, org extractwas intraventricularly injected at d...

In this paper we model the hierarchal nature of memory in order to examine the variance, and in general, all moments of the distribution of time memory access. The existence of an unbounded variance for the memory access time can lead to extremely long wait queues and a particular class of distributions that has this property is the power tailed distribution. We present an analytical model to s...

introduction: even though there is a high prevalence of carpal tunnel syndrome patients, there are very few reliable papers on the study of normal values and changes in sensory and motor latency parameters of the median nerve in the wrist region on the basis of age of patients .this retrospective study was on the basis of 5 years data (1998 -2003) from the electro diagnostic department of sh. s...