Cognitive development from infancy to young adulthood in common marmosets (Callithrix jacchus): Effect of age, sex, and hormones on learning and affective state.

Studies looking at individual variability in cognition have increased in recent years. We followed 43 marmosets (21 males, 22 females) from infancy to young adulthood. At 3-months old, marmosets were trained to touch a rewarded stimulus. At 9-, 15-, and 21-months old, they were given visual discrimination and cognitive bias tests, and urine samples were collected to examine hormone levels. Marmosets were significantly more successful learners at 15 months than 9 months. Individuals who were more successful learners at 9 months were also more successful at 15 months, with more male learners than expected at 15 months. At 9 months, learning success was associated with higher cortisol levels. At 15 months, males with higher estradiol levels were more successful learners, whereas at 21 months, females with higher estradiol and cortisol levels tended to be less successful learners and more pessimistic. Nine months, therefore, appears to be an important developmental timepoint for acquiring cognitive control, which has developed by 15 months. Steroids may have differential effects on each sex, with complex interactions between gonadal and adrenal hormones having an influence on cognitive function over the lifespan. This longitudinal study offers new insight into cognition, including its development and biological underpinnings.

Strategies to improve the experience of patients with brain tumors in the inpatient rehabilitation setting: development of a care coordination checklist.

PURPOSE: To develop a checklist to facilitate coordination of care and communication of patients with brain tumors and assess the benefit of the checklist using a quality improvement survey. MATERIALS AND METHODS: Rehabilitation teams are challenged to respond to the unique needs of patients with brain tumors as this population requires coordinated care across multiple disciplines with frequent communication. To improve care of this patient population in an IRF setting, we developed a novel checklist using a multidisciplinary team of clinicians. Our checklist aims to improve communication between multiple treatment teams, achieve appropriate goals during the IRF stay, involve services as needed and arrange post-discharge services for patients with brain tumors. We then used a quality improvement survey among clinicians to assess the efficacy and general opinion of the checklist. RESULTS: A total of 15 clinicians completed the survey. 66.7% felt that the checklist improved care delivery, and 66.7% felt the checklist improved communication between providers internally and with external institutions. More than half felt the checklist improved the patient experience and care delivery. CONCLUSIONS: A care coordination checklist has the potential to address the unique challenges experienced by patients with brain tumors to improve overall care for this population.IMPLICATIONS FOR REHABILITATIONSuccessful clinical care and rehabilitation of patients with brain tumors requires the coordinated efforts of an interdisciplinary team that often spans multiple care settings.A care coordination checklist has the potential to address the unique challenges experienced by patients with brain tumors to improve overall care for this population in the inpatient rehabilitation setting.