Brain and Behavior

We investigated the expression of glycoprotein non-metastatic melanoma B (Gpnmb), a glioma-associated protein, in non-tumorous neural tissues of adult rats. Under normal condition, Gpnmb-immunoreactive cells were widely distributed in the cerebral cortex, hippocampal dentate gyrus, cerebellar cortex, spinal dorsal horn, choroid plexus, ependyma, and periventricular regions, and most frequently co-stained with microglia/macrophage markers. An intraperitoneal injection of bacterial endotoxin lipopolysaccharide increased the number of Gpnmb-positive cells in the area postrema, indicating infiltration of hematogenous macrophages. These results suggest that Gpnmb plays an important role in the regulation of immune/inflammatory responses in non-tumorous neural tissues.

In an open field arena, Drosophila spend the majority of time at the arena boundary even when additional vertical surfaces are present in the interior. The visually impaired white files have defects in the attenuation of exploratory activity. by increasing the contrast of the boundary, we can rescue this defect in white mutants, demonstrating that the boundary is a primary object of exploration in an open field arena.

The present study shows that picture-word interference combines suppression of areas well known from neural priming and enhancement of language-related areas caused by dual activation from target and distractor. Differences between interference and priming need to be taken into account. The present interference paradigm has the potential to reveal the functioning of word processing stages, cognitive control, and responsiveness to priming at the same time.

We herein, for the first time, report that METH applied into the VTA produces positive place reinforcement learning. However, METH induced place learning was conditionally dependent on the hippocampus-VTA loop. If the VTA were chemically stimulated with METH earlier than the ventral hippocampus (VHC) it produces positive place learning even following the application of the drug into the other two regions of the circuit; VHC and NAc. By contrast, if the VHC were chemically stimulated with METH earlier than the VTA, it fails to produce positive place reinforcement and thereby produces place aversion, even following the application of the drug into the other two regions of the circuit; VTA and NAc.

The Thy1-hAPPLond/Swe+ mouse model of AD displayed behavioral phenotype that resembles, in part, the cognitive and psychiatric symptoms experienced in AD patients. In addition, we demonstrated the relevance of a series of behavioral assays for behavioral phenotyping and pharmacological screening of compounds of transgenic mouse models of AD.

Spinal AM1241 reverses allodynia with corresponding anti-inflammatory effects in the spinal cord and dorsal root ganglia. Additionally, spinal AM1241 modulated levels of the endocannabinoid degradative enzyme MAGL within the dorsal horn spinal cord.

The purposes of this study were to examine self-reported use of antidepressants among depressed homebound older adults, class and type of antidepressants used, individual-level correlates of antidepressant use, and users' perceptions of the effectiveness of antidepressants. About half of the 162 study participants were taking antidepressants, with 26.6% of those on antidepressants rating their medications very effective and 21.5% rating them effective. Female gender was positively, but older age and being Black/African American were negatively associated with the likelihood of antidepressant use. Perceived effectiveness of antidepressants was negatively associated with older age and the HAMD score.

We have used fMRI to visualize neuronal activation patterns in military adults with AAT and various tinnitus sequelae during an auditory “oddball” attention task. our results might suggest a model in which AAT tinnitus may arise as a proprioceptive illusion caused by abnormal excitability of middle ear muscle spindles possibly linked with the acoustic reflex and associated with emotional and sensorimotor disturbances.

Why carotid angioplasty/stenting is not indicated for asymptomatic carotid stenosis or ‘low/standard CEA risk’ symptomatic carotid stenosis.