objective: children with attention deficit hyperactivity disorder (adhd) do not process most information due to inattention and loss of the opportunity to save and retrieve information. therefore, these children experience memory impairment. although visual memory has been previously studied in children with adhd, iconic memory in these children has been less evaluated. we aimed to study the po...

background and aim: although recent research has revealed the positive effects of bilin­gualism on children's cognitive abilities, little information is available on the relationship bet­ween bilingualism and working memory. working memory is generally composed of four dis­tinct parts, among which the phonological loop plays an important role in speech and language development, reading skills, ...

objective: the aim of present research is to investigate the effects of neurofeedback on cognitive function with emphasis on memory. method: this study is an experimental study. for this reason using a stratified sampling procedure sample of 30 subjects in 2 groups of experimental and placebo was selected. investigated subjects were assessed with the wechsler memory scale in two stages (pretest...

many factors are involved in learning and memory processes including brain nuclei, neurotransmitter systems, and the activity of ion channels. studies showed inconsistent effects of calcium channel blockers on learning process, especially memory consolidation; however, little is known about their effect on memory acquisition and retrieval. accordingly, the present study aimed to determine the e...

introduction: children with attention deficit hyperactivity disorder have problem in sustain attention that is necessary for learning. the purpose of present study is comparing explicit and implicit memory in children with attention deficit disorder and typically developing children. material and methods: in present cross sectional study, fifteen children with attention deficit disorder compare...

CsI(Na), CsI(T1) and NaI(T1) scintillators coupled through optical fibers were investigated with simulations and measurements to evaluate their potential as gamma imaging intraoperative probes. Three coupling methods were employed: discrete crystals coupled one-to-one with the fibers; discrete crystals coupled through a light diffuser to an unmatched fiber array; and continuous crystals coupled...

autobiographical memory, that is, our memory for personal life experiences, is integral to our sense of self. however, the experience of trauma can create distortions in how our memories are bought to mind. in particular, trauma can produce an overgeneral memory style, which relates to the development of both ptsd and depression. however, theory states that immediately following a traumatic eve...

introduction: recent studies suggest that glucocorticoids modulate memory reconsolidation. moreover, cholinergic system is involved in memory reconsolidation. since glucocorticoids interact with brain cholinergic system in modulating memory processing, we investigated whether glucocorticoid influences on the reconsolidation of emotionally arousing training depend on the cholinergic system. meth...

In this paper we present a probabilistic extension of LOTOS which is upward compatible with LOTOS. We present testing semantics for the reactive and generative models described in vGSST90]. While there is a certain lose of the meaning of probabilities in the reactive model, testing with probabilistic tests proves to be too strong, because it does not relate behavior expressions which we expect ...

This paper presents a new approach to the solution of nonsymmetric linear systems that uses hybrid techniques based on both direct and iterative methods An implicitly preconditioned modi ed system is obtained by applying projections onto block rows of the original system Our technique provides the exibility of using either direct or iter ative methods for the solution of the preconditioned syst...