Cognition and emotion: on paradigms and metaphors

Perceptions and experiences of nutritional management needs for patients with esophageal cancer during the peri-radiotherapy period: A qualitative study

OBJECTIVE

Malnutrition in patients with esophageal cancer is a major health problem. However, the information about the perceptions and experiences of nutritional management needs during the peri-radiotherapy period is lacking. This study aimed to understand the experiences of, and perspectives on, nutritional management needs of patients with esophageal cancer, family caregivers, doctors, and nurses ​so as to explore the influencing factors and coping strategies to meet nutritional management needs for patients with esophageal cancer during the peri-radiotherapy period.

METHODS

A qualitative study with purposive and theoretical sampling was used in this study. One-to-one and focus group interviews were held among patients, main family caregivers, doctors, and nurses in a tertiary general hospital and a tertiary cancer hospital in Shantou, south of China, from August to September in 2020. Data were analyzed using grounded theory by a three-level coding method. The reporting of this study adhered to the COREQ guidelines.

RESULTS

A total of 12 patients, 10 main family caregivers, 6 doctors, and 9 nurses were interviewed. According to the participants, the three main categories, "personal cognition," "family and social factors," and "nutritional management environment and system," were the main factors influencing nutritional management needs. "Lack of nutrition-related cognition," "effects of feeding-related symptom clusters," and "motivation" were the three major factors that constituted participants' personal cognition on nutritional management. "Dietary conditions in medical institutions," "nutritional management system in medical institutions," and "home nutritional care" were the main components of the nutritional management environment and system. The coping strategies included standardized nutritional training for staff, patients and caregivers, social support system, discharge preparation services, multidisciplinary nutritional management, and construction of the organization and management system.

CONCLUSIONS

Malnutrition in patients with esophageal cancer who suffer from great diet pain during the peri-radiotherapy period has become a concerning health issue. It is still challenging and needs more nutritional research. The full identification of influencing factors for nutritional management needs and the proposal of coping strategies may help provide theoretical support and a practical basis for constructing a tumor nutritional management scheme to meet the needs of patients with esophageal cancer.

Value-based cognition and drug dependency

Value-based decision-making is thought to play an important role in drug dependency. Achieving elevated levels of euphoria or ameliorating dysphoria/pain may motivate goal-directed drug consumption in both drug-naïve and long-time users. In other words, drugs become viewed as the preferred means of attaining a desired internal state. The bias towards choosing drugs may affect one's cognition. Observed biases in learning, attention and memory systems within the brain gradually focus one's cognitive functions towards drugs and related cues to the exclusion of other stimuli. In this narrative review, the effects of drug use on learning, attention and memory are discussed with a particular focus on changes across brain-wide functional networks and the subsequent impact on behaviour. These cognitive changes are then incorporated into the cycle of addiction, an established model outlining the transition from casual drug use to chronic dependency. If drug use results in the elevated salience of drugs and their cues, the studies highlighted in this review strongly suggest that this salience biases cognitive systems towards the motivated pursuit of addictive drugs. This bias is observed throughout the cycle of addiction, possibly contributing to the persistent hold that addictive drugs have over the dependent. Taken together, the excessive valuation of drugs as the preferred means of achieving a desired internal state affects more than just decision-making, but also learning, attentional and mnemonic systems. This eventually narrows the focus of one's thoughts towards the pursuit and consumption of addictive drugs.

Separate neural networks of implicit emotional processing between pictures and words: A coordinate-based meta-analysis of brain imaging studies

Both pictures and words are frequently employed as experimental stimuli to investigate the neurocognitive mechanisms of emotional processing. However, it remains unclear whether emotional picture processing and emotional word processing share neural underpinnings. To address this issue, we focus on neuroimaging studies examining the implicit processing of affective words and pictures, which require participants to meet cognitive task demands under the implicit influence of emotional pictorial or verbal stimuli. A coordinate-based activation likelihood estimation meta-analysis was conducted on these studies, which revealed no common activation maximum between the picture and word conditions. Specifically, implicit negative picture processing (35 experiments, 393 foci, and 932 subjects) engages the bilateral amygdala, left hippocampus, fusiform gyri, and right insula, which are mainly located in the subcortical network and visual network associated with bottom-up emotional responses. In contrast, implicit negative word processing (34 experiments, 316 foci, and 799 subjects) engages the default mode network and fronto-parietal network including the ventrolateral prefrontal cortex, dorsolateral prefrontal cortex, and dorsomedial prefrontal cortex, indicating the involvement of top-down semantic processing and emotion regulation. Our findings indicate that affective pictures (that intrinsically have an affective valence) and affective words (that inherit the affective valence from their object) modulate implicit emotional processing in different ways, and therefore recruit distinct brain systems.

Research With Implicit Measures: Suggestions for a New Agenda of Sub-Personal Psychology

Research with implicit measures has been criticized for an unclear meaning of the term implicit and inadequate psychometric properties, as well as problems regarding internal validity and low predictive validity of implicit measures. To these criticisms, we add an overly restrictive theoretical focus and research agenda that is limited to the narrow dichotomy between associations versus propositional beliefs. In this article, we address the last problem by introducing a new perspective of a sub-personal psychology. This broad approach expands the conceptual horizon in order to make use of the full potential that experimental paradigms can offer for assessing, explaining, predicting, and modifying human functioning and behavior. Going beyond the analysis of associations and beliefs, we highlight the use of experimental paradigms to examine and modify motivational, environmental, and episodic memory factors that influence human action.

Rethinking emotion science: new theory section for Cognition & Emotion

A cumulative emotion science requires sustained investments in theory development. To encourage such investments, a new section will be added to Cognition & Emotion that is specifically devoted to theory. In this Editorial, we first lay out the rationale for the new Theory section. Next, we consider the added value of theory for research on cognition and emotion. Building on these notions, we outline the kinds of articles that are to be published in the new Theory section, with Klaus Scherer being the inaugural Editor of the Theory section.