The in vivo autoradiographic deoxyglucose method was used to identify the functional brain circuits that are involved in the performance of appetitive and consummatory components of male sexual behavior in Japanese quail (Coturnix japonica). Two groups of castrated, testosterone-treated male quail were trained during 12 sessions to associate the view of a female behind a window with the opportu...

The cerebral cortex can be functionally subdivided into primary sensory-motor, unimodal association, heteromodal association, paralimbic and limbic regions. Broca was the first who described limbic lobe in 1874, as a ring of gray matter, lying between the diencephalon and more lateral neocortex on the medial surface of the hemisphers. It locates outside of the corpus callosum and consists of su...

the cerebral cortex can be functionally subdivided into primary sensory-motor, unimodal association, heteromodal association, paralimbic and limbic regions. broca was the first who described limbic lobe in 1874, as a ring of gray matter, lying between the diencephalon and more lateral neocortex on the medial surface of the hemisphers. it locates outside of the corpus callosum and consists of su...

SUMMARY: This report presents 4 subjects with congenital segmental callosal thickening, an uncommon malformation studied with MR imaging and DTI. Medical records were reviewed for genetic testing and neurodevelopmental status. Three subjects had profound developmental delay; 3 had seizures. MR imaging showed segmental thickening of the rostral and/or midcallosal body. Associated anomalies inclu...

The habenula consists of a set of nuclei located in the epithalamus. It regulates the release of multiple neuromodulators including serotonin and dopamine, and consists of two major subdivisions— medial and lateral. In all vertebrates, the medial habenula projects to the interpeduncular nucleus (IPN), a midline structure with poorly defined functions (Morley, 1986). Both the medial habenula and...

Identification of three species of Suillus, S. caerulescens, S. ponderosus, and S. imitatus, has always been difficult because of overlapping and non-discrete morphological characters. To solidify the identification of these taxa, we compared the nucleotide sequences from the internal transcribed spacer region (ITS) of the type specimens of S. caerulescens, S. ponderosus, S. imitatus var. imita...

Fungi are ubiquitous in Arctic soils, where they function as symbionts and decomposers and may affect the carbon balance of terrestrial ecosystems subjected to climate change, and yet little is known about soil fungi at high latitudes. Here we review data from recent molecular studies to determine broad patterns in Arctic soil fungal ecology. The data indicate comparatively high fungal diversit...