Ganser’s syndrome
David Enoch, Basant K. Puri, Hadrian Ball in Uncommon Psychiatric Syndromes, 2020
On admission he appeared to be an old-looking man of 55 years, though well built and well nourished. Apart from brisk reflexes in both lower limbs and limitation of straight-leg raising, more so on the right side, no abnormal physical signs were detected. He was obviously perplexed, anxious, confused and appeared to be in pain. He was not then hallucinated but stated that he had heard voices a month ago. He showed poverty of speech, limited spontaneity and considerable sensorial impairment. He was disorientated for time and place. On being asked what month it was (December) he answered, “November.” On being asked what place he was in, he answered “I forget where I am at times.” Attention and concentration were poor. Asked to subtract serial sevens from one hundred, he gave the answers: 100 – 7 = 83; 83 – 7 = 76; 76 – 7 = 63; 63 – 7 = 46. There was obviously a patchy memory loss present which seemed to confirm his assertion that he forgot things. He was particularly vague about the circumstances of his marriage which had occurred only two months previously. It was noted that he answered questions with great deliberation and took them very seriously.
Assessment of Cognitive Function in Cancer Patients
David M. Dush, Barrie R. Cassileth, Dennis C. Turk in Psychosocial Assessment in Terminal Care, 2014
High reliability and validity for bedside tests of attention and concentration have yet to be reported. The Serial Sevens Test, for example, was originally designed as a test of intelligence in children; it is currently used as a test of ability to attend to a task (Manning, 1982). Moreover, discriminating norms have been difficult to establish; when the Serial Sevens Test of Kraepelin was given to normals, 58% made errors (Keller & Manschreck, 1981).
Evaluation of Autonomic Failure
David Robertson, Italo Biaggioni in Disorders of the Autonomic Nervous System, 2019
B) Baseline blood pressure and heart rate are determined with the subject in the supine position. The subject is instructed to subtract serial sevens beginning at 200 and counting for 60 seconds as fast as he or she can. Blood pressure, and heart rate is recorded at the end of the behavioral task (Falkner, et al., 1981).
Examination of clinical and laboratory measures of static and dynamic balance in breast cancer survivors
Published in Physiotherapy Theory and Practice, 2021
Elizabeth S. Evans, Caroline J. Ketcham, Julie C. Hibberd, Miranda E. Cullen, Julia G. Basiliere, Dorriea L. Murphy
Breast cancer survivors who were 0–5 years post-chemotherapy displayed largely similar static postural control compared to physically similar women without a history of cancer. These similarities generally continued upon the inclusion of the dual serial sevens cognitive task. In contrast, breast cancer survivors displayed poorer performance on the TUG and FABS, which was also moderately correlated with their FES-I scores. It is possible that the static balance assessments, both with and without the concurrent cognitive task, similarly challenged neuromuscular function in both study groups, while the dynamic assessments may have been more challenging for the breast cancer survivor group, even though self-reported fear of falling was similar between groups. In cancer survivors, decreased balance is associated with an increased risk of falling and declining health-related quality of life (Huang et al., 2014). Future studies examining associations between cognitive function, balance, postural stability, falls history, and falls risk may help clinicians to gain additional perspectives on the impact of cancer treatments on physical function, identify changes indicating a potential functional decline, and further develop specific interventions aimed to improve balance-related aspects of function in these individuals.
Effects of High-Dose, Short-Duration β-Alanine Supplementation on Cognitive Function, Mood, and Circulating Brain-Derived Neurotropic Factor (BDNF) in Recreationally-Active Males Before Simulated Military Operational Stress
Published in Journal of Dietary Supplements, 2021
Alyssa N. Varanoske, Adam J. Wells, David Boffey, Idan Harat, Cheyanne L. Frosti, Gregory J. Kozlowski, Yftach Gepner, Jay R. Hoffman
A modified version of the original Serial Sevens Test was used to assess cognitive function on PRE and POST (Hayman 1942). The Serial Subtraction Test (SST) consisted of a 2 min timed test in which participants were provided a sheet of paper with a list of subtraction equations. Participants were required to subtract the number seven from each random computer-generated four digit number to measure how quickly and accurately they can compute simple mathematical problems. Participants were asked to complete as many calculations as possible in the 2 min period. The number of correct answers was recorded. The test was conducted in a quiet room with no distractions. Participants were familiarized with this test on FAM day by completing one 2 min round.
Hand and torso pre-cooling does not enhance subsequent high-intensity cycling or cognitive performance in heat
Published in Temperature, 2020
Tessa Maroni, Brian Dawson, Grant Landers, Louise Naylor, Karen Wallman
Importantly, the Serial Sevens task is a complex cognitive test that assesses attention, working memory maintenance and manipulation [38]. By maintaining or improving working memory capacity (as seen here), it would be expected that attention would be improved, thus enhancing the ability to block out distractions during sporting events [28]. The comparable cognitive scores found between all trials here is most likely a reflection of the similar Tc values recorded at the end of pre-cooling.
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