As a comment on Kurzban et al.'s opportunity cost model, we propose an alternative view of mental effort and the action selection mechanism in the brain. Our hypothesis utilizes local resource depletion within neuronal networks, which justifies from a neurophysiological perspective why mental fatigue diminishes after switching to a novel task and explains action selection by means of neural com...

This study evaluated the effectiveness of spatially overlaid instructions using augmented reality (AR) in an assembly task comparing with other traditional media. Results indicate that overlaying 3D instructions on the workspace reduce error rate by 82%, particularly cumulative errors. Measurement of mental effort also suggests some of the mental workload is offloaded to the computer.

OBJECTIVES Law and order enforcement tasks may expose special force police officers to significant psychosocial risk factors. The aim of this work is to investigate the relationship between job stress and the presence of mental health symptoms while controlling sociodemographical, occupational and personality variables in special force police officers. METHOD At different time points, 292 of ...

Background & Aims of the Study:  Occupational stress is one of the most common problems that can occur in any occupational population and can cause problems for the individual mental health.  Therefore, the present study aims to investigate the relation between occupational stress and psychological distress in Isfahan’s steel employees. Materials & Methods: This cross-sectional study was co...

A defining but elusive feature of the human brain is its astonishing complexity. This complexity arises from the interaction of numerous neuronal circuits that operate over a wide range of temporal and spatial scales, enabling the brain to adapt to the constantly changing environment and to perform various amazing mental functions. In mentally ill patients, such adaptability is often impaired, ...