introduction: barrel cortex of rats is a part of somatosensory cortex, which receives information from facial whiskers. vibrisectomy by sensory deprivation leads to some changes in the barrel cortex, which have been known as experience dependent plasticity. on the other hand, norepinephrine (ne) and locus coeruleus, which is the main source of ne, influenced response properties of cortical barr...

Rich episodic experiences are represented in a hierarchical manner across diverse network of brain regions, and as such, the way which episodes forgotten is likely to be similarly diverse. Using novel experimental approaches statistical modelling, recent research has suggested that item-based representations, such ones related colour shape an object, fragment over time, whereas higher-order eve...

The consolidation of declarative memories is believed to occur mostly during sleep and involves a dialogue between two brain regions, the hippocampus medial prefrontal cortex. information encoded experience by neuronal assemblies replayed leading progressive strengthening integration memory trace in gradual transfer from cortex for long-term storage requires synchronization cortico-hippocampal ...

Abstract Voluntary allocation of visual attention is controlled by top-down signals generated within the Frontal Eye Fields (FEFs) that can change excitability lower-level areas. However, mechanism through which this control achieved remains elusive. Here, we emulated generation an attentional signal using single-pulse transcranial magnetic stimulation to activate FEFs and tracked its consequen...

Abstract Research on the mechanical properties of brain tissue has received extensive attention. However, most current studies have been conducted at phenomenological level. In this study, indentation method was used to explore difference in local among different regions porcine cerebral cortex. Further, hematoxylin-eosin and immunofluorescence staining methods were determine correlation betwee...

Brain areas implicated in the stress response include the amygdala, hippocampus and prefrontal cortex. Neonatal stimulation of an animal by handling or by enhanced maternal care induces at adult age a decrease of the hypothalamo-pituitary adrenal (HPA) response to stressors, a decrease of anxiety in a novel environment, and neuroanatomical changes. In this present study we demonstrated that mat...

The contents of GABA, glutamine (Glu) and asparagine (Asp) acids as well as activities of glutamatdecarboxylase (GDK; CF 4.1.1.15) and 4-aminobutirat: 2-oxoglutarataminotransferase (GABA-T: CF 2.6.1.19) in brain cortex, cerebellum, brainstem and hypothalamus under impact of testosterone propionate at a dose of 5 mg/100 g of alive weight of adult albino male rats in spring and autumn were studie...

background: alzheimer's disease is the most common form of dementia which is still difficult to be differentiated from other types of brain disorders. moreover, mild cognitive impairment refers to the presence of cognitive impairments that is not severe enough to meet the criteria of alzheimer's, and its diagnosis in early stages is so critical. there is currently no distinct method available f...