OBJECTIVE Psychosis, like other neuropsychiatric symptoms of dementia, has many features that make predictive modeling of its onset difficult. For example, psychosis onset is associated with both the absolute degree of cognitive impairment and the rate of cognitive decline. Moreover, psychotic symptoms, while more likely than not to persist over time within individuals, may remit and recur. To ...

Based on psychophysiological research, coherent heart-brain interaction can change afferent cardiac signal pattern sent to the brain. Accordingly, the present study aimed at facilitating the emotion-cognition interaction through HeartMath Institute self-regulated emotional techniques to investigate the efficacy of heart-brain coherence on reading anxiety reduction that significantly enhances at...

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The main challenge for theories of multitasking is to predict when and how tasks interfere. Here, we focus on interference related to the problem state, a directly accessible intermediate representation of the current state of a task. On the basis of Salvucci and Taatgen's (2008) threaded cognition theory, we predict interference if 2 or more tasks require a problem state but not when only one ...

In defining state/action pairs for reinforcement learning of the Tetris task, we seek to recognize known game states, as well as to learn new ones according to relevant game features. We propose a model of cognition that uses categorization as a mechanism to sort such features into appropriate state-types, and an attention mechanism based on predicted values of each state as a method for decidi...

neuropsychological studies have demonstrated that preclinical dementia accompanies a decreasing trend in cognitive state a few years prior to clinical diagnosis. sudden decline in episodic memory and semantic knowledge have been found to have the capability to differentiate patients in preclinical state of dementia from those experiencing normal aging. in addition, decline in episodic memory is...

patients and methods the study was performed on 40 tbi patients referred to the shahid beheshti hospital of kashan city and 40 normal controls in kashan. traumatic brain injured patients and normal controls were selected by convenience sampling. two groups filled out the demographic sheet, cognitive failures questionnaire (cfq) and meta-cognitions questionnaire 30 (mcq-30). the data were analyz...