• one's
  • Although one's efforts may involve very different tasks, each incoming stimulus calls upon the same directed attention mechanism. (wikipedia.org)
  • clinical
  • This temporary condition is not a clinical illness or a personality disorder. (wikipedia.org)
  • This new measure of functional capacity is practical, relevant, easy to use, and has several features that improve validity and sensitivity of measurement of function in clinical trials of patients with CNS disorders. (jove.com)
  • brain
  • Brain Imaging and Behavior. (monash.edu)
  • This type of attention employs the inhibitory mechanisms of the brain, which help block incoming stimuli that are unrelated to the task at hand. (wikipedia.org)
  • Several parts of the brain are involved in maintaining directed attention, primarily those located in the frontal lobe and the parietal lobe of the brain. (wikipedia.org)
  • Specifically, the mechanism of directed attention employs the prefrontal cortex (PFC), the anterior cingulate cortex (ACC) and the brain stem's basal ganglia. (wikipedia.org)
  • Any illness or injury to the brain that interrupts the brain circuits involved in maintaining attention and inhibiting external stimuli may also contribute to the development of directed attention fatigue. (wikipedia.org)
  • Attention can be objectively demonstrated by such methods as electro-encephalography or PET scanning, which show special activity in the parts of the brain most employed at the time. (thefreedictionary.com)
  • depression
  • Scientists and clinicians recognized that a small number of people exposed to the stress of various natural disasters, such as fires, hurricanes, and floods, could develop psychological sequelae such as major depression, chronic anxiety, and post-traumatic stress disorder (PTSD). (cdc.gov)
  • Baum and colleagues (18) found indicators of psychophysiological effects from stress, including elevated levels of psychological distress, perceived threat, subclinical anxiety disorders, and depression in many of the community members they surveyed at TMI as compared with controls. (cdc.gov)
  • schizophrenia
  • A broad range of psychopathology, including externalizing disorders is seen in offspring at genetic risk for schizophrenia. (pubmedcentralcanada.ca)
  • Family studies indicate that the closer a person's genetic relatedness to a person with schizophrenia, the greater the likelihood of developing the disorder. (wikipedia.org)
  • tasks
  • page needed] Directed attention, or voluntary attention, requires a great deal of concentration and focus, and is employed in tasks such as problem solving. (wikipedia.org)
  • Studies that require participants to carry out attention-demanding tasks under conditions of high distraction reveal how unpleasant a mentally fatigued person can be. (wikipedia.org)
  • Fatigue that is experienced by participants of these kinds of studies is induced by attention-intensive tasks, and the observed effects of such fatigue are correlated with decline in inhibitory control. (wikipedia.org)
  • To clarify this issue, future neuropsychological investigations are encouraged to employ tasks with significantly more trials and direct manipulations of bottom-up mechanisms with larger samples. (biomedcentral.com)
  • common
  • Disorders associated with dysfunction of autonomic nervous system are quite common yet frequently unrecognized. (jove.com)
  • risk
  • An older 2003 review of linkage studies also listed seven genes as likely to increase risk for a later diagnosis of the disorder. (wikipedia.org)
  • abnormal
  • Among those with psychopathology, HR subjects with externalizing disorders showed the most abnormal scores in schizotypy. (pubmedcentralcanada.ca)
  • Current thought among disaster relief workers holds that most people will suffer no or only transient effects from the stress of a natural disaster ( i.e. , acute stress disorder) or, in other words, 'people reacting normally to an abnormal situation' (B. Flynn, 1995, personal communication). (cdc.gov)
  • stimuli
  • The greatest threat to a given focus of attention is competition from other stimuli that can cause a shift in focus. (wikipedia.org)
  • page needed] Directed attention fatigue occurs when a particular part of the brain's global inhibitory system is overworked due to the suppression of increasing numbers of stimuli. (wikipedia.org)
  • certain
  • Some postulate that the chronic stress documented to occur in some communities near hazardous waste sites could possibly lead to an array of biopsychosocial effects, including physical health effects from chronic stress (possible health outcomes affected by stress include cardiovascular, gastrointestinal disorders, and skin), increases in the prevalence of certain psychological disorders, and social disruption. (cdc.gov)
  • condition
  • The condition can be difficult to tell apart from other disorders, as well as to distinguish from high levels of activity that are still within the normal-range. (wikipedia.org)
  • background
  • Activities that engage this system include multitasking, working in an environment with disruptive background noise or after a lack of sleep, and rapidly changing focus during a prolonged period of attention. (wikipedia.org)