The prefrontal cortex (PFC) is critical for decision making, and it becomes dysfunctional in many neuropsychiatric disorders. Studies in schizophrenia patients and relevant animal models suggest loss of PFC inhibitory interneuron function. For instance, rats with a neonatal ventral hippocampal lesion (NVHL) show a deficient modulation of PFC interneurons by dopamine (DA). Whether the PFC become...

Effortful cognitive performance is theoretically expected to depend on the formation of a global neuronal workspace. We tested specific predictions of workspace theory, using graph theoretical measures of network topology and physical distance of synchronization, in magnetoencephalographic data recorded from healthy adult volunteers (N = 13) during performance of a working memory task at severa...

objective: suicide rate is unfortunately increasing in recent years and its assessment is a must. most studies have evaluated different factors like personality, depression, or environment in suicide attempters but cognitive functions have been overlooked in suicide attempters. the current research aimed to evaluate a kind of cognitive function, namely attention in survivors of suicide.  method...

Cognitive effort is a concept of unquestionable utility in understanding human behaviour. However, cognitive effort has been defined in several ways in literature and in everyday life, suffering from a partial understanding. It is common to say “Pay more attention in studying that subject” or “How much effort did you spend in resolving that task?”, but what does it really mean? This contributio...

objective: the purpose of this study was to investigate the relationship of psychological wellbeing with variables of mindfulness and emotion regulation strategies, and then to identify which one predicts better psychological well-being. methods: we used a descriptive-analytical design for this study. a total of 243 students from 3 tehran universities were selected using the convenience samplin...