Recent studies have emphasized that adult hippocampal neurogenesis impairment may be associated with cognitive problems. Because cuprizone (CPZ), a copper-chelating reagent, was shown to decrease the production of new neurons, we aimed further understand involvement in function by using short-term (2-week) CPZ exposure paradigm. The CPZ-fed mice showed deficits, i.e., impaired sensorimotor gati...

Methamphetamine (METH) is a highly addictive drug, and addiction to METH has increased to epidemic proportions worldwide. Chronic use of METH causes psychiatric symptoms, such as hallucinations and delusions, and long-term cognitive deficits, which are indistinguishable from paranoid schizophrenia. The GABA receptor system is known to play a significant role in modulating the dopaminergic neuro...

Behavioral assays are commonly used for the assessment of sensorimotor impairment in the central nervous system (CNS). The most sophisticated methods for quantifying locomotor deficits in rodents is to measure minute disturbances of unconstrained gait overground (e.g., manual BBB score or automated CatWalk). However, cortical inputs are not required for the generation of basic locomotion produc...

According to the sensorimotor approach, perception is a form of embodied know-how, constituted by lawful regularities in the sensorimotor flow or in sensorimotor contingencies (SMCs) in an active and situated agent. Despite the attention that this approach has attracted, there have been few attempts to define its core concepts formally. In this paper, we examine the idea of SMCs and argue that ...

This paper reports a series of 5 experiments concerned with a possible role for N-methyl-D-aspartate (NMDA) receptors in certain types of learning. The results show that chronic intraventricular infusion of the NMDA receptor antagonist D,L-2-amino-5-phosphonopentanoic acid (D,L-AP5) caused an impairment of spatial but not of visual discrimination learning in rats. Such selectivity of the learni...

OBJECTIVE To provide family physicians with an approach to office management of gait disorders in the elderly. SOURCES OF INFORMATION Ovid MEDLINE was searched from 1950 to July 2010 using subject headings for gait or neurologic gait disorders combined with physical examination. Articles specific to family practice or family physicians were selected. Relevant review articles and original rese...

schwartz-jampel syndrome, (sjs) is a rare disorder characterized by myotonia, joint contracture, facial dysmorphism and growth retardation, we present three siblings (two sisters and one brother) 19,24 and 27 years old from consanguineous healthy parents with sjs. their clinical features were similar to those previously described. motor and sensory nerve conduction study (ncs) were compatible w...

BACKGROUND The neuropathological hallmark of Huntington's disease (HD) is progressive striatal loss starting several years prior to clinical onset. In the past decade, whole-brain magnetic resonance imaging (MRI) studies have provided accumulating evidence for widely distributed cortical and subcortical atrophy in the early course of the disease. OBJECTIVE In order to synthesize current morph...

According to the sensorimotor account, vision does not imply the construction of internally generated representations of the environment, but it is the skillful exercise of the sensorimotor contingencies obeying sense-specific laws. In this short study, I focus on the notion of “sensorimotor law” and characterize the kind of explanation provided by the sensorimotor theory as a form of covering ...

Thirty-four mentally retarded, institutionalized adults were subjects in a study of the effects of sensorimotor integrative treatment procedures on sensorimotor development. The 25 subjects in the experimental group received group sensorimotor integrative treatment in addition to regular institutional programming; the 9 subjects in the control group received only the regular institutional progr...