Variable-ratio versus variable-interval schedules: response rate, resistance to change, and preference

Two experiments asked whether resistance to change depended on variable-ratio as opposed to variable-interval contingencies of reinforcement and the different response rates they establish. In Experiment 1, pigeons were trained on multiple random-ratio random-interval schedules with equated reinforcer rates. Baseline response rates were disrupted by intercomponent food, extinction, and prefeeding. Resistance to change relative to baseline was greater in the interval component, and the difference was correlated with the extent to which baseline response rates were higher in the ratio component. In Experiment 2, pigeons were trained on multiple variable-ratio variable-interval schedules in one half of each session and on concurrent chains in the other half in which the terminal links corresponded to the multiple-schedule components. The schedules were varied over six conditions, including two with equated reinforcer rates. In concurrent chains, preference strongly overmatched the ratio of obtained reinforcer rates. In multiple schedules, relative resistance to response-independent food during intercomponent intervals, extinction, and intercomponent food plus extinction depended on the ratio of obtained reinforcer rates but was less sensitive than was preference. When reinforcer rates were similar, both preference and relative resistance were greater for the variable-interval schedule, and the differences were correlated with the extent to which baseline response rates were higher on the variable-ratio schedule, confirming the results of Experiment 1. These results demonstrate that resistance to change and preference depend in part on response rate as well as obtained reinforcer rate, and challenge the independence of resistance to change and preference with respect to response rate proposed by behavioral momentum theory.     

ESBLs大肠埃希菌Ⅰ类整合子与耐药性关系

整合子通过位点特异的基因重组在临床细菌耐药性传播中起重要作用。根据整合酶基因intⅠ的序列不同将整合子划分成4种类型,其中第一类整合子最常见,决定着细菌的多重耐药。产ESBLs菌株在整合予水平转移的介导下能增加捕获这些基因盒的可能性,更有利于耐药基因的传递和扩散。     

At the Nexus of cinema,city and memory: Resisting the demolition of Istanbul's historical Emek movie theatre

Emek was the oldest surviving movie theatre in Istanbul when it was demolished in 2013 so that a shopping mall could be built in its place, spawning a persistent civic resistance. Sitting at the juxtaposition of the vibrant literatures on urban studies, film studies, and memory studies, the article demonstrates that emotions, evoked by memories, have a part in triggering urban resistance, adding to the flourishing literature on how emotions inspire and sustain activism. Specifically, it provides ethnographic evidence for the presence of a positive link between place attachment and willingness to engage in place-protective behaviour, stressing the role played by memories in this regard. Focusing on a historical movie theatre, on the other hand, also reveals the complex spatiality of cinematic experience, stressing the importance of social relations and vicinity of the theatre (the street in particular) in this specific context. A final set of contributions derived from the case of Emek relates to the notions of “failure” and “sustainability of activism” given that the resistance to Emek's demolition is characterised by its resilience and persistence as well as a determination to “resist to forget”, despite the failure, practices of emotional reflexivity playing a key role in this respect.     

Treating food selectivity as resistance to change in children with autism spectrum disorder

Change-resistant behavior, such as rigid and selective food consumption, is a core symptom of autism that can have significant negative consequences for the child (Flygare Wallén et al., 2018; Levy et al., 2019). In the current study, we used a matching-law-based intervention (Fisher et al., 2019) to treat the change-resistant feeding behavior of 7 young children with autism. The feeder gave the participant a choice between a change-resistant and an alternative food during free- and asymmetrical-choice conditions. Alternative-food consumption increased for 2 participants during asymmetrical choice when the feeder provided a preferred item for consuming the alternative food and no programmed consequence for consuming the change-resistant food. Alternative-food consumption increased for the other 5 participants after the feeder exposed at least 1 food to single choice in which the feeder guided the participant to put the bite of alternative food in his or her mouth if he or she did not do so within 8 s of presentation. Effects of the single-choice contingencies maintained during reversals and generalized to other alternative foods the feeder did not expose to single choice. These results are important because participants consumed alternative foods even when their change-resistant foods were present, which is similar to typical mealtime contexts in which children have choices among foods.     

On the capacity to suffer one's self

Problems in the establishment of the sense of a ‘psychic’ skin, in the ways described by Bick and Meltzer for example, commonly give rise to distortions in the capacity for self‐experiences as a consequence of difficulties in relation to projective and identificatory processes. These latter may acquire a markedly adhesive character as a defence against the anxieties that arise. This makes for considerable technical difficulties in an analysis. This essay addresses the nature of these problems and considers some of the ways in which they may be approached clinically.     

La qualité de la relation leader/membre et les comportements innovants : le rôle modérateur de la résistance au changement

Researchers have proposed that high quality of supervisor–employee relationships (Basu & Green, 1997; Scott & Bruce, 1994; Sanders, Moorkamp, Torka, Groeneveld & Groeneveld, 2010) fosters innovative behaviour. Moreover, researchers have acknowledged that this relationship is not clear (Rosing, Frese & Bausch, 2011; Volmer, Spurk & Niessen, 2012). The present study aims at testing the moderating role of resistance to change in the LMX-innovative behaviour relationship. Results of a study based on 160 participants from an organization provide empirical support to this hypothesis.     

More Than Mazel? Luck and Agency in Surviving the Holocaust

The canonical explanation for how Jews survived during the Holocaust involves some form of luck. To explore and deepen an understanding of episodic moments of luck, this article presents and discusses survivor Jerry Rawicki's close calls with death during the Holocaust. The first author examines Jerry's perspective as a survivor and her own perspective as a collaborative witness to his stories, as well as how these stories fit together within the broader literature about luck and survival. She suggests possible consequences of regarding luck as the sole explanation of survival and contends that agency and luck can go hand in hand even under oppressive structural conditions, such as the Holocaust. She concludes by reflecting on why Jerry and she might understand survival differently and on the importance of considering both positions in compassionate collaborative research.     

Selling with technology: understanding the resistance to mobile sales assistant use in retailing

The rise of online competitors and increasingly well-informed customers have spurred stationary retailers to take measures to increase the quality of face-to-face selling as a key differentiator. Mobile sales assistants (MSAs) represent an intensively discussed technological approach to address these challenges in the salesperson–customer dyad. However, in many cases, salespeople do not or only sporadically use MSAs. Prior research provides inadequate answers as to why this is the case, as extant technology acceptance and resistance theories have limited applicability to MSAs. To address these research gaps, the authors conduct a qualitative, theory-building approach and identify 21 factors associated with resistance. In a subsequent quantitative survey study, they validate these factors and refine their conceptual structure. The results show that several largely unknown factors are associated with salespeople’s resistance to MSA use: The three higher-order constructs, ‘incongruence’, ‘relationship deterioration’, and ‘operational imperfection’, are newly introduced to the literature on technology resistance. The findings extend prior technology acceptance and resistance theories and provide comprehensive insights for retail managers.     

Translating Dispositional Resistance to Change to the Culture Level: Developing a Cultural Framework of Change Orientations

A fundamental societal challenge is to balance the desire for growth, development, and progress on the one hand and the need for stability and maintenance of the status quo on the other. To better understand how societies deal with this challenge we employ the personality trait of dispositional resistance to change to conceptualize and empirically establish the concept of cultural change orientation. With data from individuals in 27 countries (N = 6487), we identify three culture‐level change orientation dimensions (routine seeking, affective reactance, and cultural rigidity) and interpret their meaning through their relationships with established cultural frameworks (e.g. GLOBE, Hofstede, Inglehart, and Schwartz). We thus propose a new culture‐level framework and test hypotheses about relationships between change orientation dimensions and national indexes of economic, technological, social, and environmental change. Our findings demonstrate meaningful differential relationships between the three change orientation dimensions and these societal outcomes. Copyright © 2018 European Association of Personality Psychology