INTRODUCTION Octopuses blinded by section of their optic nerves can be trained to discriminate between the members of pairs of objects touched (Wells & Wells, 1956, 1957a). Removal of the optic lobes—more than half of the total mass of the brain—does not affect their performance in such discriminations (Wells & Wells, 19576), but removal of a comparatively small amount of tissue from the vertic...

We compared SAR distributions in major anatomical structures of the brain of a homogeneous and a heterogeneous model using FDTD calculations. Our results proved a good correlation between SAR values in lobes of the brain where tumors may arise more frequently. However SAR values at some specific locations were shown to be under or overestimated. key words: brain, epidemiological study, health e...

The research focuses on the possibility of early detection of AD-specific vascular and atrophic brain changes in families which have a tendency to inherit the disease. The research included three families with AD inheritance. All patients underwent: cognitive function assessment (MMSE), determination of dementia severity (CDR) and AD stages (TDR), computed tomography (CT), magnetic resonance im...

Ideas concerning the functions of the frontal lobes have undergone a radical change during the past few years. The older hypotheses (which are too well known to require discussion here) were based upon certain conditions such as injuries, tumors, or inflammatory lesions of various types, in which the general effects of disease upon the brain as a whole could by no means be excluded. Moreover, i...

We are frequently exposed to hand written digits 0-9 in today's modern life. Success in decoding-classification of hand written digits helps us understand the corresponding brain mechanisms and processes and assists seriously in designing more efficient brain-computer interfaces. However, all digits belong to the same semantic category and similarity in appearance of hand written digits makes t...

The common view of Alzheimer's disease (AD) is that of an age-related memory disorder, i.e. declarative memory deficits are the first signs of the disease and associated with progressive brain changes in the medial temporal lobes and the default mode network. However, two findings challenge this view. First, new model-based tools of attention research have revealed that impaired selective atten...

Previous studies on brain activity during the completion of the Stroop test focused mainly on finding differences between brain activity during the completion of the congruent and incongruent parts of the test. Based on the results of those studies, the key role of the DLPFC and the ACC was emphasized in solving the cognitive conflict accompanying the completion of the incongruent part of the S...

Brain injuries are common in professional American football players. Finding effective rehabilitation strategies can have widespread implications not only for retired players but also for patients with traumatic brain injury and substance abuse problems. An open label pragmatic clinical intervention was conducted in an outpatient neuropsychiatric clinic with 30 retired NFL players who demonstra...

The sensitivity of the honey bee, Apis mellifera L. (Hymeonoptera: Apidae), brain volume and density to behavior (plasticity) makes it a great model for exploring the interactions between experience, behavior, and brain structure. Plasticity in the adult bee brain has been demonstrated in previous experiments. This experiment was conducted to identify the potentials and limitations of MicroCT (...