It is well known that there are functional differences between right and left brain hemispheres. However, it not clear whether these reflected in morphometric differences. This study was carried out to investigate the right-left asymmetry, sex species of brains using Cavalieri principle for volume estimation. Seventeen lambs, 10 rats 12 avian were used estimate volumes. A transparent point grid superimposed on slices lamb directly rat projected onto a screen at 10x magnification. Surface...

Stereology (from the Greek stereos = solid) is considered as spatial interpretation of profiles seen in sections. It a multidisciplinary science field dealing with three-dimensional objects appearing on sectional planes metallurgical materials or tissues. supplies practical techniques for obtaining quantitative information about three-dimensional, real-world structures from two-dimensional planar profiles. After acknowledging fact that sections are not true representations real objects, need...

In this study, the right sciatic nerves of 40 rats were used to determine whether a nerve graft within vein might accelerate and facilitate axonal regeneration, compared with alone. The animals separated into four groups, as follows: group 1, sham control; 2 (control), segmental resection no repair; 3, grafting; 4, reconstruction conduit graft. For all functional indices calculated before operation on postoperative days 7 90. On day 90, reexposed conduction velocities recorded. harvested...

Abstract The toxic effect of non‐steroidal anti‐inflammatory drugs (NSAIDs) during development has been widely investigated. While it shown that these impair central nervous and compromise the neural activity, effects substances on peripheral nerves are still not clarified. In present study, sciatic withdrawn from three experimental groups 4‐week‐old rats, prenatally exposed to either saline solution, or diclofenac sodium, controls any substance, were evaluated in terms axon number,...

Number of particles in an organ or region is a valuable data as well the volume. Many techniques have been developed for estimation total number numerical density cells tissues and organs. The quality reliability each method has constantly increased compared to its predecessors. Numerical one parameters that used assess association between structure function. It should be kept mind biological comments derived from dependent on quantitative parameters. As stated previously, most important...

The purpose of the study was to investigate effects pulsed digital electromagnetic radiation emitted by mobile phones on central nervous system adult Wistar albino rats. evaluated structural and functional impacts four treatment arms: field (EMF) exposed; EMF exposed + melatonin treated group (EMF Mel); omega-3 (ω3) ω3); control (Cont). 12-weeks-old rats were 900 MHz for 60 min/day (4:00–5:00 p.m.) 15 days. Stereological, biochemical electrophysiological techniques applied evaluate...

Measurements of microscope stage movements in the x and y directions are importance for some stereological methods such as optical disector fractionator. The length can be measured with great precision accuracy using a suitable motorized stage, which is generally computer-assisted instrument. This type equipment too expensive not readily available many laboratories. paper describes simple method to measure along directions, used purposes systematic uniform random sampling. It needs...

Aims: The aim of the present study was to find most efficient sampling strategy for stereological analysis peripheral nerve, including number myelinated nerve fibres, axon cross‐sectional area and myelin sheet thicknesses fibres. Methods: Two groups rats underwent experimental resection tibial peroneal nerves. first group received tibial‐peroneal end autograft repair ( n = 6). Tibial nerves were isolated, transected, separated 1 cm distal trifurcation, where they lay adjacent each other by a...

Ethanol is known as a potent teratogen having adverse effects on brain and behavior. However, some of the behavioral deficits caused by fetal alcohol exposure well expressed in juveniles ameliorate with maturation may suggest kind functional recovery occurring during postnatal development. The aim this study was to reexamine age-dependent impairments fetal-alcohol rats investigate changes neurogenesis gross morphology hippocampus protracted period searching for developmental and/or delays...

The purpose of this study was to assess the significance hippocampal volume differences and its relation with risperidone treatment in schizophrenia. In schizophrenic patients who were on (n = 11) healthy volunteers 11), volumes hippocampi estimated using magnetic resonance images (MRIs). A detailed systematic series coronal MRIs entire brain (3 mm thickness, T(1)-weighted, TR/TE 400/10 ms) obtained for each subject. All estimations done according Cavalieri's method by a modified...

The aim of this work is based on recovering the ECG signal from low frequency varying noise. method used for purpose simple, well known moving average filter. For filter to operate as a highpass filtering system functions basically remove trend added signal. authors have seen that recovers perfectly trend. Then by subtracting recorded data trend, noise-free obtained. Moreover, effectiveness proposed shown in domain.

The fractionator is a straightforward and unbiased method to estimate virtually any type of total quantity using sectional profiles tissue particles. Its basic principle ease use make this approach choice in many microscopical quantitative studies. In review we will summarize the principles give some examples focused especially on topics neuroscience research. NeuroQuantology | March 2012 Volume 10 Issue 1 Page 54-65

Bilişsel sinirbilimin eğitime sunduğu fırsatlardan birisi de öğrenme sürecinde bireysel farklılıkların anlaşılmasını sağlamasıdır.Dolayısıyla eğitimde sinirbiliminden faydalanabilmek için disiplinler arası çalışmalara ihtiyaç duyulmaktadır.Bu araştırmalar matematiksel düşüncenin nerde ve nasıl oluştuğuna dair bulgulara ulaşabilmek önemli görevler üstlendiklerini

This paper presents an Electroencephalography (EEG), Pulse Plethysmography (PPG) and Galvanic Skin Response (GSR) study for neuromarketing studies, which are related to analysis of relationship between electrodes emotional stress across commercial advertisement. Neuromarketing is a field with respect the application neuroscience methods analyze consumer behavior markets. Wavelet coherence (WC) phase difference (PD) were used investigating how marketing stimuli induced degree information flow...

Neurofeedback refers to a form of operant conditioning electrical brain activity, in which desirable activity is rewarded and undesirable inhibited. The research team aimed examine the efficacy neurofeedback therapy on electroencephalogram (EEG) for heart rate, electrocardiogram (ECG) galvanic skin resistance (GSR) parameters healthy young male population.Forty subjects aged between 18 30 years participated this study. application one session was made with bipolar electrodes placed T3 T4...

Tinnitus is the recognition of sound in absence any external auditory stimulus to noise ringing ears. Middle ear aeration carries important role for ossicular coupling and normal hearing. There restricted morphometric data on cases with bilateral tinnitus.In this study we evaluated hearing findings 18 subjective nonpulsatile tinnitus also morphometry volumetry temporal bone substructures computed tomography images using stereological method compared gender age matched 12 healthy subjects....

Abstract Seven days after 10 minutes bilateral occlusion of internal carotid arteries, the total neuron number and volume hippocampus were estimated using optical fractionator method for cell counting Cavalieri’s principle estimation. After comparing with sham‐operated animals, no significant difference in was observed hippocampi ischemic chicks; a statistically increase numerical density hippocampal neurons group (p<0.05) could well be explained as decrease, although insignificant,...

Abstract A study designed to investigate how the cellular laterality in rosto‐caudal direction changes due age and sex was presented. It is a well‐known fact that asymmetry an important issue understanding brain functions. Frontal sections of 5 µm thickness with 200 intervals were taken from both dorsal hippocampi 4‐ 20‐week‐old male female rats. Sections stained hematoxylin‐eosin levels determined according stereotaxic atlas. In each level, numerical density pyramidal cells right left area...