An extended range of novel ruthenium phosphaalkene complexes of the type [Ru{η-N:η-P,C-P(pz)=CH(SiMe2R)}(CO)(PPh3)2] (R = Tol, C6H4CF3-p; pz = pzMe2, pzCF3, pzMe,CF3; R = Me, C6H4CF3-p; pz = pzPh) have been prepared from the respective ruthenaphosphaalkenyls [Ru{P=CH(SiMe2R)}Cl(CO)(PPh3)2] upon treatment with Lipz. Where R = C6H4CF3-p and pz = pzMe2 the complex is characterized by single crysta...

Executive dysfunction in those high on traits of psychopathy has often been reported, with many disagreements as to the nature of the dysfunction. We aimed to see if tests of planning and rule acquisition/adherence would discriminate those high on psychopathic traits. A battery of executive function tests (Tower of London, Brixton Spatial Anticipation, and Hayling Sentence Completion Tasks) was...

Chemotherapy is associated with cognitive impairment in a subgroup of breast cancer survivors, but the neural circuitry underlying this side effect is largely unknown. Moreover, long-term impairment has not been studied well. In the present study, functional magnetic resonance imaging (fMRI) and neuropsychological testing were performed in breast cancer survivors almost 10 years after high-dose...

Corresponding Author: Mehdi Tehrani-Doost, M.D Associate Professor of Child and adolescent Psychiatry, Roozbeh Psychiatry Hospial, South Kargar Avenue Tehran, 13185, Iran E-mail: [email protected] Objective: The purpose of this study is to compare the executive functions in children and adolescents who suffer from attention deficit hyperactivity disorder (ADHD) with normal children. Method: T...

Twenty girls between 10 and 13 years of age, studying at a residential school were randomly assigned to two groups. One group practiced yoga for one hour fifteen minutes per day, 7 days a week, while the other group was given physical training for the same time. Time for planning and for execution and the number of moves required to complete the Tower of London task were assessed for both group...

This article provides an overview of recent research on human planning and problem solving. As an introduction, these two cognitive domains will be described and discussed from the perspective of experimental and cognitive psychology. The following sections will focus on the role of the prefrontal cortex in planning and problem solving and on disorders of these functions in patients with fronta...

In two experiments, we compared secondary task interference on Tower of London performance resulting from three different secondary tasks. The secondary tasks were designed to tap three different executive functions, namely set-shifting, memory monitoring and updating, and response inhibition. Previous work using individual differences methodology suggests that, all other things being equal, th...

This study assessed screening thresholds for determining workers exposure to toluene (Tol) by urinary Tol (Tol-U) and proposed applicable criteria for on-site settings. Participants' urine samples (n = 21) were collected at the end of the workday during the latter half of a week and the Tol-U concentration was assayed. Simultaneously, each worker's exposure dose to Tol in the breathing zone dur...