The present study verified if the translational component of locomotion modulated cortical activity recorded at action observation. Previous studies focusing on visual processing of biological motion mainly presented point light walker that were fixed on a spot, thus removing the net translation toward a goal that yet remains a critical feature of locomotor behavior. We hypothesized that if bio...

Serum protein electrophoresis (EPG) is commonly requested to aid diagnosis of disorders associated with alterations gamma globulins. In 2022, the RCPAQAP introduced reporting serum fractions, albumin, alpha-1, alpha-2, beta, beta-1, beta-2, and gamma, in paraproteins program. A high variation results for certain fractions was noted. We sought review this heterogeneity. Methods: The qualitative ...

Background: Muscle fatigue has been known to influence brain activity, but very little is known about how cortical centers respond to muscle fatigue.Objective: This study was conducted to investigate the effects of muscle contraction and fatigue induced by two different percents of maximal voluntary contraction (MVC) on Electroencephalography (EEG) signals.Material and Methods: In t...

In order to elucidate brain mechanisms that contribute to the increased tendency for vigilance dysregulation in the elderly, we examined the spatial organization of brain electric activity [electroencephalogram (EEG)] during decreasing vigilance from alertness to onset of sleep stage 2, comparing 7 old and 10 younger, healthy subjects (60-79 and 18-41 years old, respectively). Two features were...

Attention-deficit/hyperactivity disorder (ADHD) was found to be characterized by a deviant pattern of electrocortical activity during resting state, particularly increased theta and decreased beta activity. The first objective of the present study is to confirm whether individuals with slow alpha peak frequency contribute to the finding of increased theta activity in ADHD. The second objective ...

1. A collagenase digest of rat kidney cortex was separated into four bands by zonal centrifugation. 2. Two of these bands were shown by light-microscopy to contain glomeruli and tubular fragments, which were free from each other and well separated from other renal material. 3. Protein, N-acetyl-beta-glucosaminidase, 5'-nucleotidase, l-leucine beta-naphthylamidase, leucine aminopeptidase, acid p...

We investigated how the detection of mirror symmetry depends on the distribution of contrast energy across spatial scales. Stimuli consisted of vertically symmetric noise patterns with fractal power spectra defined by 1/f beta slopes (-2 < or = beta < or = 5). While overall rms contrast remained fixed at 25%, symmetry-detection thresholds were obtained by corrupting the signal with variable amo...

Objective: The human cerebral hemispheres are known to function asymmetrically with daytime left hemisphere superiority in most right-handed persons. It may have relevance to localization of specific function of the brain. This study attempted to reveal whether or not the functional cerebral asymmetry of wakeful state holds in the sleep onset period. Methods: Thirty channel EEG was recorded in ...

Objective: The human cerebral hemispheres are known to function asymmetrically with daytime left hemisphere superiority in most right-handed persons. It may have relevance to localization of specific function of the brain. This study attempted to reveal whether or not the functional cerebral asymmetry of wakeful state holds in the sleep onset period. Methods: Thirty channel EEG was recorded in ...