Cognitive flexibility is an important goal in the computational modeling of higher cognition. An agent operating in the world that changes over time should adapt to the changes and update its knowledge according to them. In this paper, we report our progress on implementing a constraint-based mechanism for learning from failures in a cognitive architecture, ICARUS. We review relevant features o...

BACKGROUND AND PURPOSE Enzogenol, a flavonoid-rich extract from Pinus radiata bark with antioxidant and anti-inflammatory properties has been shown to improve working memory in healthy adults. In traumatic brain injury (TBI), oxidation and inflammation have been linked to poorer cognitive outcomes. Hence, this phase II, randomized controlled trial investigated safety, compliance and efficacy of...

BACKGROUND Accidents and injuries at work account for several million working days lost each year. Cognitive failures (problems of memory, attention or action) can lead to accidents and injuries in certain contexts. AIM This work describes the prevalence and associations of workplace accidents, minor injuries and cognitive failures reported by respondents to a follow-up postal questionnaire a...

Intuitively, cognitive failures and dissociation seem to encompass overlapping mental phenomena. This study used a large sample to examine the nature of the relationship between these constructs. Exploratory factor analysis (EFA) and confirmatory factor analyses were performed on the Cognitive Failures Questionnaire (CFQ). The single factor resulting from the EFA of the CFQ correlated significa...

People often fail to notice unexpected stimuli when they are focusing attention on another task. Most studies of this phenomenon address visual failures induced by visual attention tasks (inattentional blindness). Yet, such failures also occur within audition (inattentional deafness), and people can even miss unexpected events in one sensory modality when focusing attention on tasks in another ...

Laboratory studies of stress and memory have generally found that people with more stress tend to have poorer cognitive performance. The present investigation examined the relationship between stressors and memory failures in a naturalistic setting via a daily diary study of 333 older adults in the VA Normative Aging Study. Multilevel models indicated that on days when people experienced stress...