The temporal interval between flashing lights that is required to perceive nonsimultaneity decreases as the refractive error increases from 0 to +2 diopters. The interval then remains constant with further increases to 3 and 4 diopters. The results are discussed in terms of the relative increase of transient to sustained visual channels and of the increase in apparent movement.

OBJECTIVE This longitudinal study had three aims: 1) determine the extent to which boys at high average risk and low average risk for substance use disorder differ on a construct of neurobehavioral disinhibition, 2) evaluate the capacity of neurobehavioral disinhibition to predict substance use frequency at age 16, and 3) demonstrate the utility of neurobehavioral disinhibition in predicting su...

background: the interaction between serum neuron-specific enolase (nse), biogenic amino-acids and neurobehavioral function with blood lead levels in workers exposed to lead form lead-acid battery manufacturing process was not studied. objective: to evaluate serum nse and biogenic amino-acids (dopamine and serotonin) levels, and neurobehavioral performance among workers exposed to lead from lead...

Background: Air fresheners are products with fragrances used to mask unpleasant odor in the environment. However, air fresheners contain diverse chemical substances that pose health challenges to the users; hence are of public health significance. Although previous studies have shown that air fresheners affect the lungs, liver and reproductive organs, the neurobehavioral effects of these agent...

children with autism spectrum disorders (asds) have great problems in social interactions including face recognition. there are many studies reporting deficits in face memory in individuals with asds. on the other hand, some studies indicate that this kind of memory is intact in this group. in the present study, delayed face recognition has been investigated in children and adolescents with asd...

Neurobehavioral organization describes infants' abilities to organize themselves within their central nervous system maturation and environment. As part of infants' environment, caregivers can structure the environment to support infants' development. Care of the high-risk infant emphasizes support of infants' emerging neurobehavioral organization. This article describes the theoretical rationa...

Introduction: - Significant increase in usage of silver nanoparticles (AgNPs) in consumer products, has increased its exposures to human and animals. Although there are some reports regarding the effects of AgNPs on complex organisms, no report was found as to its effects on neurobehavioral ontogeny. Methods: To investigate the effects of maternal exposure to AgNPs on development of neu...

This study was conducted to evaluate neurobehavioral changes arising from occupational exposure to organic solvents among shipyard painters and to establish whether a dose-effect relation existed where there was any observed impairment of neurobehavioral performance by running the test of Simple Reaction Time (SRT), Symbol Digit Substitution (SD), and Finger Tapping Speed (FT) with a computer-a...

Mercury (Hg) is neurotoxic and children may be particularly susceptible to this effect. A current major challenge is identification of children who may be uniquely susceptible to Hg toxicity because of genetic disposition. This study examined the hypothesis that genetic variants of catechol-O-methyltransferase (COMT) that are reported to alter neurobehavioral functions that are also affected by...

introduction: - significant increase in usage of silver nanoparticles (agnps) in consumer products, has increased its exposures to human and animals. although there are some reports regarding the effects of agnps on complex organisms, no report was found as to its effects on neurobehavioral ontogeny. methods: to investigate the effects of maternal exposure to agnps on development of neurobehavi...