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1.
Patient Educ Couns ; 123: 108194, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38350208

RESUMEN

BACKGROUND: Cancer survivors experience complex medical and psychosocial challenges after a cancer diagnosis, leading to unmet informational and emotional needs. There is a paucity of cancer survivorship educational resources co-created by survivors and medical professionals. OBJECTIVE: Our aim was to create an educational resource for cancer survivors, caregivers, and medical professionals that would leverage digital storytelling to address survivorship topics. PATIENT INVOLVEMENT: Our content and production team included cancer survivors, clinicians, educators, and design experts. All content was co-created by cancer survivors and medical experts. METHODS: We conducted an environmental scan of existing cancer survivorship educational resources in academic and public domains. Applying human-centered design principles, we incorporated patient perspectives through advisory board meetings and focus groups and identified a podcast as the preferred medium. We selected content and speakers, produced the podcast, and developed a corresponding website. RESULTS: Based on patient recommendations, podcast episodes address mental health, fear of cancer recurrence, relationships, parenting, relating to a new body, care transitions for adult survivors of childhood cancer, disclosing health information, and financial burden of cancer. Podcast guests were invited based on lived or learned experience in these domains. Thirteen guests (survivors, experts) and four hosts (two cancer survivors, two oncologists) co-created 15 podcast episodes. Podcast guests found the storytelling experience to be powerful and therapeutic. DISCUSSION: Digital storytelling is a scalable and accessible educational tool for communicating complex survivorship concepts that can amplify survivors' voices and increase awareness among survivors and clinicians. Co-creation of educational resources for cancer survivorship by survivors and professionals is a feasible and innovative educational strategy. PRACTICAL VALUE: A podcast created by and for cancer survivors in partnership with medical experts highlights opportunities for peer-to-peer digital storytelling to foster community among survivors and caregivers. FUNDING: Podcast production was supported by the Stanford Comprehensive Cancer Center.


Asunto(s)
Supervivientes de Cáncer , Neoplasias , Adulto , Humanos , Supervivientes de Cáncer/psicología , Neoplasias/terapia , Neoplasias/psicología , Sobrevivientes/psicología , Supervivencia , Comunicación
2.
J Cancer Surviv ; 18(1): 53-58, 2024 02.
Artículo en Inglés | MEDLINE | ID: mdl-38183579

RESUMEN

The Stanford Cancer Survivorship Program is a key initiative of Stanford Cancer Institute. The program's mission is to improve the experience and outcomes of patients and family caregivers throughout all phases of the cancer trajectory by advancing survivorship research, clinical care, and education. The four pillars of the program include clinical care delivery with a focus on primary care-survivorship collaboration and expanding specialty services, education and training of healthcare professionals, transdisciplinary patient-oriented research, and community engagement. Cross-cutting areas of expertise include the following: (a) adolescents and young adults (AYAs), (b) mental health and patient self-management, (c) integration of primary care, and (d) postgraduate medical education. The clinical care model includes embedded survivorship clinics within disease groups in outpatient clinics, novel clinics designed to address unmet needs such as sexual health for women, and primary care-based faculty-led survivorship clinics for patients undergoing active cancer care requiring co-management, those who have completed active therapy and those at high risk for cancer due to genetic risk. Educational initiatives developed to date include an online course and medical textbook for primary care clinicians, a lecture series, monthly research team meetings, and rotations for medical trainees. Patient-facing activities include webinars and a podcast series designed to promote awareness, thus expanding the provision of expert-vetted information. Ongoing research focuses on oncofertility and family building after cancer, improving communication for AYAs, changing mindsets to improve quality of life through targeted digital interventions, increasing capacity to care for cancer survivors, and strengthening collaboration with community partners. IMPLICATIONS FOR CANCER SURVIVORS: Stanford's Cancer Survivorship Program includes a robust transdisciplinary and interdisciplinary research, training and clinical platform that is committed to advancing access and improving care for people living with and beyond cancer, through innovation in design and care delivery.


Asunto(s)
Supervivientes de Cáncer , Neoplasias , Adolescente , Adulto Joven , Humanos , Femenino , Calidad de Vida/psicología , Atención a la Salud , Supervivencia , Cuidadores , Neoplasias/terapia
3.
Pediatr Blood Cancer ; 71(2): e30798, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38053230

RESUMEN

BACKGROUND: Individual- and population-level socioeconomic disadvantages contribute to unequal outcomes among childhood cancer survivors. Reducing health disparities requires understanding experiences of survivors from historically marginalized communities, including those with non-English language preference. PROCEDURE: We partnered with a community-based organization (CBO) serving families of children with cancer in a rural region in California with low socioeconomic status and majority Hispanic/Latino (H/L) residents. We interviewed English- and Spanish-speaking adolescent/young adult (AYA) childhood cancer survivors (≥15 years old, ≥5 years from diagnosis), parents, and CBO staff to evaluate post-treatment needs and impact of CBO support. Data were analyzed qualitatively using applied thematic analysis. Themes were refined through team discussions with our community partners. RESULTS: Twelve AYAs (11 H/L, 11 bilingual), 11 parents (eight H/L, seven non-English preferred), and seven CBO staff (five H/L, five bilingual) participated. AYAs (five female, seven male) were of median (min-max) age 20 (16-32) and 9 (5-19) years post diagnosis; parents (nine female, two male) were age 48 (40-60) and 14 (6-23) years post child's diagnosis. Themes included challenges navigating healthcare, communication barriers among the parent-AYA-clinician triad, and lasting effects of childhood cancer on family dynamics and mental health. Subthemes illustrated that language and rurality may contribute to health disparities. CBO support impacted families by serving as a safety-net, fostering community, and facilitating H/L families' communication. CONCLUSIONS: Childhood cancer has long-lasting effects on families, and those with non-English language preference face additional burdens. Community-based support buffers some of the negative effects of childhood cancer and may reduce disparities.


Asunto(s)
Inequidades en Salud , Neoplasias , Adolescente , Adulto , Niño , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven , Familia/psicología , Hispánicos o Latinos/psicología , Neoplasias/terapia , Padres/psicología , Investigación Cualitativa , Poblaciones Vulnerables , Factores Socioeconómicos , Supervivientes de Cáncer
5.
J Cancer Surviv ; 2023 Oct 04.
Artículo en Inglés | MEDLINE | ID: mdl-37792162

RESUMEN

PURPOSE: Adherence to survivorship care is suboptimal among pediatric and adolescent/young adult (AYA) cancer survivors. We evaluated predictors of cancer center-based follow-up among pediatric/AYA cancer survivors, with an emphasis on social determinants of health (SDOH). METHODS: This retrospective cohort study used electronic health record data at an academic medical center to identify patients aged 0-29 years at last cancer treatment who completed treatment 2010-2019. Cancer center-based follow-up was defined by oncology or survivorship clinic visits through 12/31/2022. Multivariate logistic regression models (overall, ages 0-19 [pediatric], 20-29 [YA]) evaluated the association of demographics, clinical/treatment characteristics, and SDOH (insurance type, distance to cancer center, area deprivation index) with clinic attendance. Further modeling accounted for the service area of a community-based organization (CBO) that supports families of children with cancer. RESULTS: A total of 2210 survivors were included (56% pediatric, 44% YA; 66% non-White). Cancer center-based follow-up decreased from 94% 1-year post-treatment to 35% at > 5-7 years. In adjusted analysis, AYAs had the lowest follow-up (5-7 years post-treatment: OR 0.25 [0.15-0.41] for age 25-29; OR 0.25 [0.16-0.41] for age 20-24; OR 0.32 [0.20-0.52] for age 15-19). Survivors residing within the CBO service area were twice as likely to follow-up (OR 2.10 [1.34-3.29]). CONCLUSIONS: Among a diverse population, AYA survivors were vulnerable to loss to follow-up. Other SDOH were not consistently associated with follow-up. Support from a CBO may partly explain these findings. IMPLICATIONS FOR CANCER SURVIVORS: CBOs may strengthen survivorship follow-up within medically underserved communities. More research is needed to understand community support in survivorship.

6.
Vet Clin Pathol ; 52(3): 493-502, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37528445

RESUMEN

BACKGROUND: Cats commonly develop thyroid disease but little is known about the long-term biological variability of serum thyroid hormone and thyrotropin (thyroid-stimulating hormone; TSH) concentrations. OBJECTIVES: We aimed to determine the long-term biological variation of thyroid hormones and TSH in clinically healthy cats. METHODS: A prospective, observational study was carried out. Serum samples for analysis of total thyroxine (T4, by radioimmunoassay [RIA] and homogenous enzyme immunoassay [EIA]), triiodothyronine (T3 ), free T4 (by dialysis), and TSH were obtained every 8 weeks for 1 year from 15 healthy cats, then frozen until single-batch analysis. Coefficients of variation (CV) within individual cats ( CV I ) and among individual cats ( CV G ), as well as the variation between duplicates (ie, analytical variation [ CV A ]) were determined with restricted maximum likelihood estimation. The indices of individuality (IoI) and reference change values (RCVs) for each hormone were calculated. RESULTS: Some thyroid hormones showed similar (total T4 by EIA) or greater (TSH) interindividual relative to intraindividual variation resulting in intermediate to high IoI, consistent with previous studies evaluating the biological variation of these hormones weekly for 5-6 weeks. By contrast, total T4 (by RIA) and free T4 had a low IoI. Total T3 had a high ratio of CV A to CV I ; therefore, interindividual variation could not be distinguished from analytical variation. No seasonal variability in the hormones could be demonstrated. CONCLUSIONS: Clinicians might improve the diagnosis of feline thyroid disease by establishing baseline concentrations for analytes with intermediate-high IoI (total T4, TSH) for individual cats and applying RCVs to subsequent measurements.


Asunto(s)
Enfermedades de los Gatos , Enfermedades de la Tiroides , Gatos , Animales , Estudios Prospectivos , Hormonas Tiroideas , Tiroxina , Enfermedades de la Tiroides/veterinaria , Tirotropina
7.
J Adolesc Young Adult Oncol ; 12(6): 918-922, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37615593

RESUMEN

Childhood cancer survivors are recommended to have lifelong survivorship care, yet many become disengaged during pediatric to adult care transitions. We implemented a pilot clinic for adult survivors of pediatric or adolescent and young adult (AYA) leukemia transitioning to adult-focused survivorship care. The clinic featured AYA-specific care, bidirectional communication with primary care, and a quality improvement (QI) cycle. During the 1-year QI period, 27 patients were seen and 21 completed postvisit interviews. The clinic was positively received by patients and primary care providers, showed promise for improving self-management and care coordination, and highlighted the need for novel approaches to connect survivors with primary care.


Asunto(s)
Supervivientes de Cáncer , Neoplasias , Transición a la Atención de Adultos , Adolescente , Adulto Joven , Humanos , Niño , Neoplasias/terapia , Sobrevivientes , Supervivencia
8.
Cancer ; 129(19): 2941-2943, 2023 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-37489767
9.
JAMA Oncol ; 9(10): 1337-1338, 2023 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-37471071

RESUMEN

This essay describes a woman who had received chest irradiation for childhood cancer and the considerations for and against breast cancer risk­reducing mastectomy.

10.
JCO Oncol Pract ; 19(5): e650-e659, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36800566

RESUMEN

PURPOSE: Childhood cancer survivors report self-monitoring for and worrying about symptoms of disease recurrence and secondary cancers, although symptom-related worry is associated with poorer health-related quality of life. This survey captured pediatric oncologists' beliefs and communication practices regarding symptom self-monitoring for childhood cancer survivors. METHODS: Using a closed-loop snowball sampling technique, pediatric oncologists completed an online survey regarding the importance of symptom self-monitoring for off-therapy patients, the degree to which symptom self-monitoring was perceived to cause stress and worry, and communication practices. RESULTS: 196 pediatric oncologists (White [78%]; female [64%]; Mage = 47 years) from every continent except Antarctica participated. Oncologists believed it is important for off-therapy patients to self-monitor for symptoms of cancer recurrence (90%) and treatment late effects (94%), although some noted that recurrence (30%) and late effects (55%) are typically detected by routine surveillance before symptoms appear. Oncologists varied in their beliefs that off-therapy patients do (31%) or do not (31%) worry unnecessarily about symptoms of recurrence. Two thirds (62%) of oncologists reported often/always discussing with off-therapy patients which symptoms could indicate cancer recurrence, whereas fewer than half (43%) often/always discussed which symptoms were unlikely to indicate recurrence. Oncologists identified a need for education regarding how to communicate around symptom self-monitoring and the potential utility of a screening tool to identify those who worry excessively. CONCLUSION: Despite nearly universal belief that their off-therapy patients should self-monitor for symptoms of disease recurrence and late effects, a substantial proportion of pediatric oncologists do not counsel patients on symptom self-monitoring. Since nearly one-third believe that off-therapy patients worry unnecessarily about symptoms of recurrence, improving patient education regarding which symptoms are and are not medically concerning could decrease stress and improve health-related quality of life for pediatric cancer survivors.


Asunto(s)
Supervivientes de Cáncer , Neoplasias , Oncólogos , Humanos , Femenino , Niño , Persona de Mediana Edad , Neoplasias/complicaciones , Neoplasias/terapia , Calidad de Vida , Oncología Médica/métodos , Comunicación
11.
Vet Clin Pathol ; 52(1): 44-52, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36289013

RESUMEN

BACKGROUND: Biological variation helps determine whether population-based or subject-based reference intervals are more appropriate to assess changes in serial analytical values. Previous studies have investigated the biological variation of biochemical analytes weekly or with variable frequency over 5-14 weeks in cats, but none have considered biological variation at less frequent intervals over 1 year. OBJECTIVES: We aimed to evaluate the long-term biological variation of 19 biochemical analytes in clinically healthy cats. METHODS: A prospective, observational study in which 15 clinically healthy, client-owned cats were sampled for serum biochemical analyses every 8 weeks for 1 year. Frozen serum samples were single-batch analyzed. Restricted maximum likelihood estimation was used to determine the coefficients of variation (CV), describing variation within each cat, between cats, and the analytical variation. These CVs were used to determine the indices of individuality and reference change values (RCVs). RESULTS: Albumin, alkaline phosphatase, creatine kinase, and globulin had high indices of individuality, indicating that they are best evaluated by RCVs. Phosphorus, potassium, chloride, sodium, symmetric dimethylarginine, and total CO2 had low indices of individuality, indicating that population-based reference intervals are appropriate. Alanine aminotransferase, aspartate aminotransferase, blood urea nitrogen, calcium, cholesterol, creatinine, glucose, total bilirubin, and total protein had intermediate indices of individuality, indicating that RCVs may provide additional insight into the interpretation of analyte measurements beyond the population-based reference intervals. CONCLUSIONS: For many analytes, the biological variation detected was similar to that reported in prior studies. Clinicians should consider the biological variation of analytes to best interpret clinically relevant changes in serial analyte measurements.


Asunto(s)
Colesterol , Manejo de Especímenes , Gatos , Animales , Estudios Prospectivos , Manejo de Especímenes/veterinaria , Nitrógeno de la Urea Sanguínea , Valores de Referencia , Análisis Químico de la Sangre/veterinaria
12.
J Cancer Educ ; 38(4): 1140-1148, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-36456891

RESUMEN

This study investigates the resources used by childhood cancer survivors (CCS) to learn about their cancer histories and evaluates if CCS feel these resources prepare them to manage their health needs as young adults. Young adult participants (aged 18-30 years) were diagnosed with cancer at ≤ 10 years and recruited by word of mouth and from social media and/or non-profit organizations and completed semi-structured interviews. A descriptive thematic analysis guided by an essentialist/realist paradigm combined inductive and deductive approaches to identify key themes. Fourteen participants were interviewed, and six key themes were identified: (1) CCS are aware of general cancer history (age at diagnosis, treating hospital, cancer type), (2) CCS are unaware of treatment regimen (medications and duration), (3) CCS want to learn more about their treatment regimens and (4) potential late effects of treatment, (5) CCS use diverse resources to learn about their cancer histories and potential late effects, and (6) survivors' interests to learn about their cancer histories change over time. Limited knowledge of their cancer treatments leaves some CCS unprepared to manage their health needs as young adults or to address potential risk of late effects. CCS recognize their limited knowledge, but the resources available to them fall short of their information needs. Identifying the shortcomings of resources used by CCS provides evidence for how resources need to be improved to meet survivors' cancer education needs.


Asunto(s)
Supervivientes de Cáncer , Neoplasias , Humanos , Niño , Adulto Joven , Neoplasias/terapia , Sobrevivientes
13.
J Exp Psychol Gen ; 152(2): 528-541, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36048054

RESUMEN

Being able to learn another person's preferences and choose on their behalf are important skills. However, people often do not choose what the other would choose for themselves. Over two incentive-compatible studies, we identify how and why people choose differently for others than the others would choose for themselves. Participants observed choices made by another person and then (a) predicted what this person would choose or (b) chose for them in new decisions, while we tracked their mouse movements. Participants learned noisy human preferences as easily as they learned noiseless algorithms. Moreover, participants' predictions of what others would choose were in line with the others' actual choices roughly 80% of the time, regardless of whether they were paid for predicting consistently with the others' actual choices. Thus, neither difficulty in learning noisy preferences nor motivation appear to be major factors in how people choose for others. However, participants were much less consistent with their recipients' preferences when choosing for them. Surrogates incorporated their own preferences and tried to maximize expected value. Mouse-tracking results imply that the recipient's preferences affect the surrogate's decision later in the choice process when choosing (vs. predicting). (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Asunto(s)
Conducta de Elección , Humanos , Motivación
14.
Front Oncol ; 12: 1033993, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36523979

RESUMEN

Clinical pathways are evidence-based tools that have been integrated into many aspects of pediatric hospital medicine and have proven effective at reducing in-hospital complications from a variety of diseases. Adaptation of similar tools for specific, high-risk patient populations in pediatric oncology has been slower, in part due to patient complexities and variations in management strategies. There are few published studies of clinical pathways for pediatric oncology patients. Pediatric patients with a new diagnosis of leukemia or lymphoma often present with one or more "oncologic emergencies" that require urgent intervention and deliberate multidisciplinary care to prevent significant consequences. Here, we present two clinical pathways that have recently been developed using a multidisciplinary approach at a single institution, intended for the care of patients who present with hyperleukocytosis or an anterior mediastinal mass. These clinical care pathways have provided a critical framework for the immediate care of these patients who are often admitted to the pediatric intensive care unit for initial management. The goal of the pathways is to facilitate multidisciplinary collaborations, expedite diagnosis, and streamline timely treatment initiation. Standardizing the care of high-risk pediatric oncology patients will ultimately decrease morbidity and mortality associated with these diseases to increase the potential for excellent outcomes.

16.
Bone Marrow Transplant ; 57(7): 1150-1163, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35523848

RESUMEN

Male-specific late effects after hematopoietic cell transplantation (HCT) include genital chronic graft-versus-host disease (GvHD), hypogonadism, sexual dysfunction, infertility, and subsequent malignancies. They may be closely intertwined and cause prolonged morbidity and decreased quality of life after HCT. We provide a systematic review of male-specific late effects in a collaboration between transplant physicians, endocrinologists, urologists, dermatologists, and sexual health professionals through the Late Effects and Quality of Life Working Committee of the Center for International Blood and Marrow Transplant Research, and the Transplant Complications Working Party of the European Society of Blood and Marrow Transplantation. The systematic review summarizes incidence, risk factors, screening, prevention and treatment of these complications and provides consensus evidence-based recommendations for clinical practice and future research.


Asunto(s)
Enfermedad Injerto contra Huésped , Trasplante de Células Madre Hematopoyéticas , Adulto , Médula Ósea , Progresión de la Enfermedad , Enfermedad Injerto contra Huésped/etiología , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Humanos , Masculino , Calidad de Vida , Receptores de Trasplantes
17.
J Am Vet Med Assoc ; 259(S2): 1-5, 2022 04 08.
Artículo en Inglés | MEDLINE | ID: mdl-35394931

RESUMEN

In collaboration with the American College of Veterinary Pathologists.


Asunto(s)
Patología Veterinaria , Veterinarios , Animales , Humanos , Estados Unidos
18.
Acad Pediatr ; 22(8): 1375-1383, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35318159

RESUMEN

OBJECTIVE: The COVID-19 pandemic prompted health systems to rapidly adopt telehealth for clinical care. We examined the impact of demography, subspecialty characteristics, and broadband availability on the utilization of telehealth in pediatric populations before and after the early period of the COVID-19 pandemic. METHODS: Outpatients scheduled for subspecialty visits at sites affiliated with a single quaternary academic medical center between March-June 2019 and March-June 2020 were included. The contribution of demographic, socioeconomic, and broadband availability to visit completion and telehealth utilization were examined in multivariable regression analyses. RESULTS: Among visits scheduled in 2020 compared to 2019, in-person visits fell from 23,318 to 11,209, while telehealth visits increased from 150 to 7,675. Visits among established patients fell by 15% and new patients by 36% (P < .0001). Multivariable analysis revealed that completed visits were reduced for Hispanic patients and those with reduced broadband; high income, private non-HMO insurance, and those requesting an interpreter were more likely to complete visits. Those with visits scheduled in 2020, established patients, those with reduced broadband, and patients older than 1 year were more likely to complete TH appointments. Cardiology, oncology, and pulmonology patients were less likely to complete scheduled TH appointments. CONCLUSIONS: Following COVID-19 onset, outpatient pediatric subspecialty visits shifted rapidly to telehealth. However, the impact of this shift on social disparities in outpatient utilization was mixed with variation among subspecialties. A growing reliance on telehealth will necessitate insights from other healthcare settings serving populations of diverse social and technological character.


Asunto(s)
COVID-19 , Telemedicina , Humanos , Niño , Pandemias , Pacientes Ambulatorios , Citas y Horarios
19.
Integr Org Biol ; 4(1): obac006, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35291671

RESUMEN

The regionalization of the mammalian spinal column is an important evolutionary, developmental, and functional hallmark of the clade. Vertebral column regions are usually defined using transitions in external bone morphology, such as the presence of transverse foraminae or rib facets, or measurements of vertebral shape. Yet the internal structure of vertebrae, specifically the trabecular (spongy) bone, plays an important role in vertebral function, and is subject to the same variety of selective, functional, and developmental influences as external bone morphology. Here, we investigated regionalization of external and trabecular bone morphology in the vertebral column of a group of shrews (family Soricidae). The primary goals of this study were to: (1) determine if vertebral trabecular bone morphology is regionalized in large shrews, and if so, in what configuration relative to external morphology; (2) assess correlations between trabecular bone regionalization and functional or developmental influences; and (3) determine if external and trabecular bone regionalization patterns provide clues about the function of the highly modified spinal column of the hero shrew Scutisorex. Trabecular bone is regionalized along the soricid vertebral column, but the configuration of trabecular bone regions does not match that of the external vertebral morphology, and is less consistent across individuals and species. The cervical region has the most distinct and consistent trabecular bone morphology, with dense trabeculae indicative of the ability to withstand forces in a variety of directions. Scutisorex exhibits an additional external morphology region compared to unmodified shrews, but this region does not correspond to a change in trabecular architecture. Although trabecular bone architecture is regionalized along the soricid vertebral column, and this regionalization is potentially related to bone functional adaptation, there are likely aspects of vertebral functional regionalization that are not detectable using trabecular bone morphology. For example, the external morphology of the Scutisorex lumbar spine shows signs of an extra functional region that is not apparent in trabecular bone analyses. It is possible that body size and locomotor mode affect the degree to which function is manifest in trabecular bone, and broader study across mammalian size and ecology is warranted to understand the relationship between trabecular bone morphology and other measures of vertebral function such as intervertebral range of motion.

20.
Proc Natl Acad Sci U S A ; 119(6)2022 02 08.
Artículo en Inglés | MEDLINE | ID: mdl-35105801

RESUMEN

It is a widely held belief that people's choices are less sensitive to changes in value as value increases. For example, the subjective difference between $11 and $12 is believed to be smaller than between $1 and $2. This idea is consistent with applications of the Weber-Fechner Law and divisive normalization to value-based choice and with psychological interpretations of diminishing marginal utility. According to random utility theory in economics, smaller subjective differences predict less accurate choices. Meanwhile, in the context of sequential sampling models in psychology, smaller subjective differences also predict longer response times. Based on these models, we would predict decisions between high-value options to be slower and less accurate. In contrast, some have argued on normative grounds that choices between high-value options should be made with less caution, leading to faster and less accurate choices. Here, we model the dynamics of the choice process across three different choice domains, accounting for both discriminability and response caution. Contrary to predictions, we mostly observe faster and more accurate decisions (i.e., higher drift rates) between high-value options. We also observe that when participants are alerted about incoming high-value decisions, they exert more caution and not less. We rule out several explanations for these results, using tasks with both subjective and objective values. These results cast doubt on the notion that increasing value reduces discriminability.


Asunto(s)
Modelos Teóricos
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