A computerized Stroop task to assess cancer-related cognitive biases

Working Memory Precision and Associative Binding in Mild Cognitive Impairment

To better understand working memory (WM) deficits in Mild Cognitive Impairment (MCI), we examined information precision and associative binding in WM in 21 participants with MCI, compared to 16 healthy controls, using an item-location delayed reproduction task. WM, along with other executive functions (i.e. Trail Making Task (TMT) and Stroop task), were measured before and after a 2-h nap. The napping manipulation was intended as an exploratory element to this study exploring potential impacts of napping on executive functions.Compared to healthy participants, participants with MCI exhibited inferior performance not only in identifying encoded WM items but also on item-location associative binding and location precision even when only one item was involved. We also found changes on TMT and Stroop tasks in MCI, reflecting inferior attention and inhibitory control. Post-napping performance improved in most of these WM and other executive measures, both in MCI and their healthy peers.Our study shows that associative binding and WM precision can reliably differentiate MCIs from their healthy peers. Additionally, most measures showed no differential effect of group pre- and post-napping. These findings may contribute to better understanding cognitive deficits in MCI therefore improving the diagnosis of MCI.

On top of that all, now Covid-19, too. A scoping review of specificities and correlates of fear of cancer recurrence in breast cancer patients during COVID-19

Fear of cancer recurrence (FCR) is a normal response in cancer survivors and one of the most prevalent reactions reported by up to 87% of them. However, elevated levels of FCR impair well-being, quality of life and professional functioning, and lead to anxiety, depression or PTSD. COVID-19 pandemic can exacerbate FCR symptoms, given the restricting access to follow-up investigations and treatment, the isolation restrictions imposed and the possibility of the medical system becoming overworked. This scoping review's objective was to synthesize the literature investigating the factors associated with higher levels of FCR in cancer survivors during the COVID-19 pandemic. The focus was on FCR in breast cancer patients, including most of the studies (5 out of 9) on this topic. However, given the novelty of the subject, the increased interest in it, and the fact that there are few studies in this field, the review included 4 other studies with mixed samples of patients with breast cancer and other oncological pathologies. Following rigorous methodological criteria, 9 studies with quantitative or mixed methodology were included (N = 4831 patients). The results indicate that high levels of FCR are associated with distress and concerns regarding the pandemic impact, with most common concerns of patients being changes in treatment plan (delays and interruptions), dysfunctional communication with medical staff or difficult access to food or medicine. The most common correlates of FCR during the pandemic are marital status, childlessness, low financial status, level of education, type of cancer diagnosis, generalized anxiety and depression.

Reproduction-related cognitive processing and distress among young adult women: the role of personal breast cancer history

Breast cancer diagnosis can threaten fertility and biological motherhood in women of reproductive age due to the gonadotoxic effects of treatments. Much evidence documents these women fertility-related concerns and distress, but no study has attempted to understand how implicit cognitive processes can contribute to this maladjustment. In this research, we explored whether reproduction-related stimuli interfere with cognition among cancer survivors with infertility risk using an emotional Stroop task. Furthermore, we investigated the relationship between reproduction-related cognitive processing and psychological morbidity. Young cancer survivors aged 18-40 years who received anticancer treatments and an age-matched non-cancer control group without known fertility problems were compared. Color-naming times and error rates were assessed. Participants in both groups were slower naming the color of reproduction-related words in comparison to unrelated negative valence words. Although in the same direction, this difference did not reach statistical significance for positive and neutral unrelated word lists. Further analysis suggested that biased attention toward reproduction-related information was associated with higher depression levels in young women with personal breast cancer history, but not in healthy women. These findings suggest that biased processing of reproduction-related cues might be a vulnerability factor after a breast cancer diagnosis. Additionally, this study puts in evidence the potential usefulness of using experimental tasks to investigate attentional bias in a context where fertility is at risk.

Comparing Traditional and Digitized Cognitive Tests Used in Standard Clinical Evaluation - A Study of the Digital Application Minnemera

The purpose of this study was to compare a new digitized cognitive test battery, Minnemera, with its correspondent traditional paper-based cognitive tests. Eighty-one healthy adults between the ages of 21 and 85 participated in the study. Participants performed the two different test versions (traditional paper-based and digitized) with an interval of four weeks between the tests. Test presentation (the order of the test versions presented) was counterbalanced in order to control for any possible test learning effects. The digitized tests were constructed so that there were only minor differences when compared to the traditional paper-based tests. Test results from the paper-based and digitized versions of the cognitive screening were compared within individuals by means of a correlation analysis and equivalence tests. The effects of demographic variables (age, gender and level of education) and test presentation were explored for each test measure and each test version through linear regression models. For each test measure, a significant correlation between traditional and digitized version was observed ranging between r = 0.34 and r = 0.67 with a median of r = 0.53 (corresponding to a large effect size). Score equivalence was observed for five out of six tests. In line with previous traditional cognitive studies, age was found to be the most prominent predictor of performance in all digitized tests, with younger participants performing better than older adults. Gender was the second strongest predictor, where women outperformed men in tests measuring verbal memory; men performed better than women in tests with a strong visual component. Finally, the educational level of the test subjects had an effect on executive functions, with a higher educational level linked to a better inhibition response and working memory span. This study suggests that the tests in the Minnemera cognitive screening battery are acceptably comparable to the traditional paper-based counterparts.

Randomized controlled trial of an 8-week intervention combining self-care and hypnosis for post-treatment cancer patients: study protocol

Background

Cancer has a lot of consequences on patients’ quality of life (such as cancer-related fatigue (CRF), sleep difficulties and emotional distress) and on patients’ partners and their relationship, such as distress and communication difficulties. These consequences are undertreated, and interventions based on hypnosis often focus on breast cancer patients only. This paper describes the study protocol of a longitudinal randomized controlled trial aiming to assess the efficacy of an 8-week intervention combining hypnosis and self-care to improve cancer patients’ CRF, sleep and emotional distress and to indirectly improve their partners’ distress.

Methods

A power analysis required a total sample of 88 patients. To test the efficacy of the intervention, results of the experimental group receiving the intervention will be compared to those of the control group. Data will be collected by questionnaires, relaxation tasks, an attentional bias task, and everyday life assessments measured at four different times: 1.) before inclusion in the study (baseline); 2.) after the intervention; and 3.) at 4- and 12-month follow-up. Partners’ symptoms will also be evaluated with questionnaires at the same measurement times.

Discussion

There is a growing interest in alternative approaches (such as hypnosis) in addition to standard therapies in oncology settings. The results of this study should be useful for improving knowledge about long-term efficacy of hypnosis-based group interventions for CRF, sleep and distress among all types of cancer patients and their partners, and to better understand the mechanisms of emotional regulation in cancer patients through the attentional bias task.

Trial registration

ClinicalTrials.gov (NCT03144154). Retrospectively registered on the 1st of May, 2017.

Electronic supplementary material

The online version of this article (10.1186/s12885-018-5046-6) contains supplementary material, which is available to authorized users.

Maximizing potential impact of experimental research into cognitive processes in health psychology: A systematic approach to material development

BACKGROUND

There is an abundance of research into cognitive processing biases in clinical psychology including the potential for applying cognitive bias modification techniques to assess the causal role of biases in maintaining anxiety and depression. Within the health psychology field, there is burgeoning interest in applying these experimental methods to assess potential cognitive biases in relation to physical health conditions and health-related behaviours. Experimental research in these areas could inform theoretical development by enabling measurement of implicit cognitive processes that may underlie unhelpful illness beliefs and help drive health-related behaviours. However, to date, there has been no systematic approach to adapting existing experimental paradigms for use within physical health research. Many studies fail to report how materials were developed for the population of interest or have used untested materials developed ad hoc. The lack of protocol for developing stimuli specificity has contributed to large heterogeneity in methodologies and findings.

PURPOSE

In this article, we emphasize the need for standardized methods for stimuli development and replication in experimental work, particularly as it extends beyond its original anxiety and depression scope to other physical conditions.

METHOD

We briefly describe the paradigms commonly used to assess cognitive biases in attention and interpretation and then describe the steps involved in comprehensive/robust stimuli development for attention and interpretation paradigms using illustrative examples from two conditions: chronic fatigue syndrome and breast cancer.

CONCLUSIONS

This article highlights the value of preforming rigorous stimuli development and provides tools to aid researchers engage in this process. We believe this work is worthwhile to establish a body of high-quality and replicable experimental research within the health psychology literature. Statement of contribution What is already known on this subject? Cognitive biases (e.g., tendencies to attend to negative information and/or interpret ambiguous information in negative ways) have a causal role in maintaining anxiety and depression. There is mixed evidence of cognitive biases in physical health conditions and chronic illness; one reason for this may be the heterogeneous stimuli used to assess attention and interpretation biases in these conditions. What does this study add? Steps for comprehensive/robust stimuli development for attention and interpretation paradigms are presented. Illustrative examples are provided from two conditions: chronic fatigue syndrome and breast cancer. We provide tools to help researchers develop condition-specific materials for experimental studies.

A pilot randomized controlled trial of cognitive bias modification to reduce fear of breast cancer recurrence

BACKGROUND

The most common, persistent concern among survivors of breast cancer is the fear that their disease will return, yet to the authors' knowledge, few interventions targeting fear of cancer recurrence (FCR) have been developed to date. The current pilot study examined the feasibility, acceptability, and preliminary efficacy of a home-delivered cognitive bias modification intervention to reduce FCR. The intervention, called Attention and Interpretation Modification for Fear of Breast Cancer Recurrence (AIM-FBCR), targeted 2 types of cognitive biases (ie, attention and interpretation biases).

METHODS

A total of 110 survivors of breast cancer were randomized to receive 8 sessions of 1 of 2 versions of AIM-FBCR or a control condition program. Computer-based assessments of cognitive biases and a self-report measure of FCR were administered before the intervention, after the intervention, and 3 months after the intervention.

RESULTS

Improvements in health worries (P = .019) and interpretation biases (rates of threat endorsement [P<.001] and reaction times for threat rejection [P = .007]) were found in those survivors who received AIM-FBCR compared with the control arm. Although only 26% of participants who screened into the study agreed to participate, the trial otherwise appeared feasible and acceptable, with 83% of those who initiated the intervention completing at least 5 of 8 sessions, and 90% reporting satisfaction with the computer-based program used.

CONCLUSIONS

The results of the current pilot study suggest the promise of AIM-FBCR in reducing FCR in survivors of breast cancer. Future research should attempt to replicate these findings in a larger-scale trial using a more sophisticated, user-friendly program and additional measures of improvement in more diverse samples. Cancer 2017;123:1424-1433. © 2016 American Cancer Society.

Examining patterns of association with defensive information processing about colorectal cancer screening

To reduce negative psychological affect from information or behavior that is inconsistent with one's positive self-concept, individuals use a variety of defensive strategies. It is unknown whether correlates differ across defenses. We examined correlates of four levels of defensive information processing about colorectal cancer screening. Cross-sectional surveys were completed by a convenience sample of 287 adults aged 50-75 years. Defenses measures were more consistently associated with individual differences (especially avoidant coping styles); however, situational variables involving health-care providers also were important. Future research should examine changes in defenses after risk communication and their relative impact on colorectal cancer screening.