Form ‘defines’ function: Neural connectivity between aesthetic perception and product purchase decisions in an fMRI study

In the aesthetics literature, object beauty has been emphasized for its non‐instrumental benefits, in other words, beauty that is ‘rewarding’ in itself, without functional considerations. In the context of consumer products, this study examines the influence of aesthetic perceptions on purchase decisions based on integrating both reward (hedonic) and functional value attribution mechanisms. Brain connectivity analysis of functional magnetic resonance imaging (fMRI) data sheds light on the neural route for the influence of product beauty on purchase. Notably, a significant directional connectivity from brain networks mediating ‘aesthetic perception’ to ‘functional value’ to ‘purchase decision’ shows that the left Amygdala, an emotion‐related region of the aesthetic network, influences all five regions in the functional network, which then influences the purchase network of the brain, thus supporting the utilitarian goals of aesthetic appraisals and the Antonio Damasio's somatic/emotional marker hypothesis. Further, we find clear evidence that the reward (hedonic) network, which also influences the purchase network, receives information from the functional network of the brain, integrating both the non‐instrumental and instrumental value of the product. In other words, beauty in consumer products influences purchase decisions by evoking emotions that importantly define the functional value of products, in addition to their hedonic/reward value uncovered in previous literature. In light of the novel findings, the authors discuss important implications for marketing theory, methodology, and practice. Copyright © 2016 John Wiley & Sons, Ltd.     

Instrumentalist Interpretations of Hindu Environmental Ethics

Many environmental ethicists believe that any adequate environmental ethic should attribute ‘direct moral standing’ (often glossed in terms of intrinsic value) to plants, animals, and the rest of nature. But certain interpretations of Hindu environmental ethics apparently attribute only instrumental value to nature. This places them in direct conflict with the purported adequacy condition on an environmental ethic. So, is such a Hindu ethical view really inadequate? In his recent book Hinduism and Environmental Ethics, Christopher Framarin claims that it is because Hindu instrumentalism about nature is either viciously circular or unacceptably arbitrary. I argue, however, that Framarin’s claim founders in virtue of his misconstruing the logical structure of instrumental value.     

Explaining Addiction: How Far Does the Reward Account of Motivation Take Us?

ABSTRACT

Choice theorists such as George Ainslie and Gene Heyman argue that the drug-seeking behaviour of addicts is best understood in the same terms that explain everyday choices. Everyday choices, they claim, aim to maximise the reward from available incentives. Continuing drug-use is, therefore, what addicts most want given the incentives they are aware of but they will change their behaviour if and when better incentives become available. This model might explain many typical cases of addiction, but there are hard cases that pose a problem. In these hard cases the addicted individual does not cease using drugs in the face of consequences that are so adverse it is implausible that they are unaware of more rewarding paths of action. These cases force the choice theorist into a dilemma: either these addicts’ drug use does not count as action and so is best described by a neurobiological model, or reference to ‘reward’ in these cases means merely ‘motivated’ and so provides no explanatory power. We propose a different model of motivation that takes self-conception into account. We show how that can better explain the hard cases of addiction and also inform our understanding of recovery and self-control.     

奖赏敏感性在冲动性饮食行为中的作用

肥胖会导致癌症、心脏病、糖尿病等诸多健康问题,而冲动性饮食是肥胖的一个重要影响因素。厘清奖赏敏感性在冲动性饮食中的作用,有助于深入理解冲动性饮食行为。本文介绍了奖赏敏感性的概念、涉及的主要研究领域、生物学基础及测量;整理归纳出奖赏敏感性影响冲动性饮食的三种可能路径:通过注意力偏向影响对享乐性食品的感知、影响消费欲望及随后的自我控制;文章最后指出了基于奖赏敏感性对冲动性饮食进行拓展研究的可能方向。     

Réguler ses émotions quand on apprend,oui mais pourquoi ? Motivations à réguler ses émotions,buts émotionnels et stratégies de régulation émotionnelle mises en œuvre par des étudiants universitaires primo-arrivants en situation de préparation d’examen

Studying for the first exam period is a big challenge for freshmen students, especially because they must be able to regulate emotions emerging from this new learning situation. Indeed, it is now recognized that cognitions and emotions interact in learning and that emotion can hinder or support it. However, we argue that it is not only emotions per se but rather how students manage them in the targeted situation (i.e. their emotional regulation skills) that impacts students’ adaptation to this academic context. Using an online survey, this study explored motives in emotion regulation, emotion goals and concrete emotion regulation strategies implemented by students during the preparation of a significant course evaluation. It focuses both on “why” students engage in emotion regulation in the target situation and on “how” this regulation is implemented. A thematic content analysis, processing the data of the 235 respondents, indicates that different motivations in emotion regulation are present among students (hedonic and instrumental motivations to regulate emotions) and that these motivations can be plural among the same students. When instrumental and hedonic motivations are both reported, although the students’ discourse argues that hedonic motivation (feeling good/better) is at the service of instrumental motivation (studying the course), concrete SRE prioritize well-being, through distraction from the course, more than the study of the course (the SRE rarely supports learning). In addition, the most reported emotion regulation strategy is distraction from the course (taking a break and doing something to distract yourself from the course), even in the absence of motivational conflicts. As a result, the theoretical model of motivated regulation (Tamir, 2009; Tamir, 2015) applied to this learning situation offers an innovative reading of why and how university students attempt to manage their emotions in order to learn successfully. Although the current study approaches only the conscious side of emotion regulation, it provides an original perspective on this complex phenomenon without ignoring the context in which it emerges. Finally, this insight should help students, teachers and educational coaches to see emotion regulation as necessary for learning and to set up pedagogical and coaching practices that support the development of SRE, adapted to the learning situation and linked to the emotional states that students wish to experiment in order to optimize learning.     

The Varieties of Instrumental Rationality

It is a mistake to think that instrumental rationality fixes a single standard for judging or describing actions. While there is a core conception of instrumental rationality, we appeal to different elaborations of that conception for different purposes. An action can be instrumentally rational in some sense(s) but not in others. As we learn more about behavior, it is possible to add useful elaborations of the core conception of instrumental rationality. In this paper, I propose a new elaboration based on Frederic Schick's work on understandings.     

Constitutive and instrumental goal orientations and their relations with eudaimonic and hedonic well-being

This study investigated an Aristotelian model of eudaimonic and hedonic well-being that distinguishes between goal orientations in which the means and ends are separable (instrumental) and in which the means and ends are inherently related (constitutive). Eudaimonic well-being was expected to be related to constitutive goal orientation and hedonic well-being was expected to be related to both constitutive and instrumental goal orientation. Personal identification with activities was expected to mediate the relationship between constitutive goal orientation and eudaimonic well-being. Personal enjoyment was expected to mediate the relationship between instrumental goal orientation and hedonic well-being. Factor analysis supported the independence of constitutive and instrumental goal orientation measures. As predicted, SEM results suggested that there were independent pathways to eudaimonic and hedonic well-being, with strong mediation in both pathways. Results were consistent with Aristotle's [Aristotle (1999). The Nicomachean ethics (M. Ostwald, Trans.). Upper Saddle River, NJ: Prentice Hall.] concept of eudaimonia and contribute to the growing literature exploring the contrast between eudaimonic and hedonic well-being.     

急性疼痛与慢性疼痛对奖赏加工的影响及神经机制

疼痛和奖赏能够为个体提供不同的行为动机和主观价值体验,寻求奖赏和避免疼痛对于生存都很重要。疼痛可划分为急性疼痛和慢性疼痛,奖赏可区分为预期阶段的动机成分和体验阶段的享乐成分。奖赏对疼痛的抑制作用已经被广泛证实,但关于疼痛对奖赏的影响,目前的研究结果并不一致。因此需要进一步区分并探究急性疼痛与慢性疼痛对奖赏加工不同阶段的影响,分析两种疼痛对奖赏加工产生不一致影响的现象。这种现象出现的原因可能与急性疼痛向慢性疼痛转变过程中出现的奖赏加工能力缺陷有关。未来可以考虑从改善奖赏加工能力缺陷的角度进行检测和治疗,提前预防急性疼痛向慢性疼痛转变。     

Effect of incentives on retention in an outpatient treatment for cocaine addicts

The high drop-out rate in treatment programs is one of the most important problems in the area of drug addictions. This study evaluated the effect of the use of incentives on retention in an outpatient program for cocaine addicts. The effect of individual variables on program drop-out was also analysed. Participants were 66 subjects who were randomly assigned to one of three treatment groups: standard treatment, treatment with incentives I, and treatment with incentives II. The patients of these two groups received incentives contingent on cocaine abstinence with two different magnitudes. Retention rate at six months was 35% in the standard treatment, 78.6% in the treatment with incentives I, and 53.3% in the treatment with incentives II. The global prognostic capacity of the individual variables (sociodemographic, history and consumption pattern, psychopathological variables, and EuropASI scores) was 85.7%, with the psychopathological variables being more closely related to retention. These results suggest that the use of incentives may be an effective strategy to improve retention in outpatient treatments for cocaine addiction.     

What Drives Work Addicts to Action? The Extended Model of Work Craving

The theory of work craving highlights three pathological components of work addiction: the behavioral wanting component (an obsessive-compulsive desire for work), the hedonic liking components (the reduction of negative emotions and compensation for low self-worth), and the cognitive learning component (neurotic perfectionism). In this article, I link the theory of work craving with the theory of motivation and the incentive-sensitization theory of addiction and discuss three major issues: (a) obsessive-compulsive symptoms are not sufficient to diagnose workaholism; (b) two hedonic components of work craving, namely, activity-related and purpose-related incentives, should be considered; and (c) incentive-sensitization is an additional mechanism that may be prepotent for addictive working.     

Instrumentally Rational Myopic Planning

Abstract

I challenge the view that, in cases where time for deliberation is not an issue, instrumental rationality precludes myopic planning. I show where there is room for instrumentally rational myopic planning, and then argue that such planning is possible not only in theory, it is something human beings can and do engage in. The possibility of such planning has, however, been disregarded, and this disregard has skewed related debates concerning instrumental rationality.     

Instrumental Borders of Gender and Religious Conversion in the Balkans∗

Abstract

In this paper I look at religious identifications and affiliations in the Balkans as instrumental political resources for ascertaining hierarchical relations among social groups and individuals, with extensive use of gendered metaphors, referring to different categories of people as either effeminate or truly manly, and actual women often used as a currency of exchange.     

Acquisition and forgetting in monkeys' memory of informational object-reward associations

The first experiment showed the monkeys could recall whether an object had been rewarded with peanuts or with sultanas, two equally preferred foods. The second investigated the effect of rewarded trials with an object on monkeys' ability to recall a nonrewarded trial with the same object. The third demonstrated that monkeys could use the memory of reward to predict nonreward and the memory of nonreward to predict reward, in a Win-Shift Lose-Stay paradigm. The fourth found differences between Win-Shift Lose-Stay and Win-Stay Lose-Shift in the rate at which associations between objects and reward events were forgotten. These results are discussed in relation to D. L. Medin's (In A. M. Schrier, Ed., Behavioral primatology, Hillsdale, N.J.: Erlbaum, 1977, Vol. I, pp. 33–69) distinction between informational and hedonic effects of reward in monkeys. It is argued that the association between an object and a reward event is represented in memory by many independent traces, different traces recording the object's association with different attributes of the reward event.     

Increased perceived stress is associated with blunted hedonic capacity: potential implications for depression research

Preclinical studies suggest that stress exerts depressogenic effects by impairing hedonic capacity; in humans, however, the precise mechanisms linking stress and depression are largely unknown. As an initial step towards better understanding the association between stress and anhedonia, the present study tested, in two independent samples, whether individuals reporting elevated stress exhibit decreased hedonic capacity. The Perceived Stress Scale (PSS) measured the degree to which participants appraised their daily life as unpredictable, uncontrollable, and overwhelming. Hedonic capacity was objectively assessed using a signal-detection task based on a differential reinforcement schedule. Decreased reward responsiveness (i.e., the participants' propensity to modulate behavior as a function of reward) was used as an operational measure of hedonic capacity. In both Study 1 (n=88) and Study 2 (n=80), participants with high PSS scores displayed blunted reward responsiveness and reported elevated anhedonic symptoms. Additionally, PSS scores predicted reduced reward responsiveness even after controlling for general distress and anxiety symptoms. These findings are consistent with preclinical data highlighting links between stress and anhedonia, and offer promising insights into potential mechanisms linking stress to depression.     

非药物成瘾的遗传学和神经生物学机制研究述评

非药物成瘾又称“非物质相关性成瘾”或“行为成瘾”。特征性表现包括对成瘾对象的渴望、受损的冲动控制、对成瘾对象的耐受、撤退反应和高复发率等。目前发现的非药物成瘾类型包括病理性赌博、网络成瘾、购物成瘾、游戏成瘾、性瘾以及贪食等。非药物成瘾与药物成瘾在症状学上表现出很高的相似性且具有较高的共病率, 提示二者之间可能存在着共同的发病机制。从遗传学和神经生物学的角度探讨非药物成瘾的机制具有重要的理论价值和临床应用价值。家庭研究和双生子研究发现, 男性的病理性赌博和贪食障碍具有中度以上的遗传度。分子遗传学研究发现, 单胺能神经递质相关基因, 如5-羟色胺转运体基因、多巴胺受体基因和单胺氧化酶A基因等, 与非药物成瘾有关。神经影像学研究发现, 非药物成瘾者脑内负责奖赏,线索加工和冲动控制的神经通路活动性异于正常对照。未来研究需要进一步从多个角度入手, 探讨非药物成瘾与药物成瘾的共性和特性。     

The oldest solution to the circularity problem for Humeanism about the laws of nature

According to Humeanism about the laws, the laws of nature are nothing over and above certain kinds of regularities about particular facts (the “Humean mosaic”). Humeanism has often been accused of circularity: according to scientific practice laws often explain their instances, but on the Humean view they also reduce to the mosaic, which includes those instances. In this paper I formulate the circularity problem in a way that avoids a number of controversial assumptions routinely taken for granted in the literature, and against which many extant responses are therefore ineffective. I then propose a solution that denies the alleged Humean commitment that laws are explained by their instances. The solution satisfies three desiderata that other solutions don’t: it provides independent motivation against the idea that Humean laws are explained by their instances; it specifies the sense in which Humean laws are nonetheless “nothing over and above” their instances; and it gives an alternative account of what does explain the laws, if not their instances. This solution, I will argue, is not only the simplest but also the oldest one: it appeals only to tools and theses whose first appearance predates the earliest statements of the circularity problem itself.

     

Differential dependence of Pavlovian incentive motivation and instrumental incentive learning processes on dopamine signaling

Here we attempted to clarify the role of dopamine signaling in reward seeking. In Experiment 1, we assessed the effects of the dopamine D(1)/D(2) receptor antagonist flupenthixol (0.5 mg/kg i.p.) on Pavlovian incentive motivation and found that flupenthixol blocked the ability of a conditioned stimulus to enhance both goal approach and instrumental performance (Pavlovian-to-instrumental transfer). In Experiment 2 we assessed the effects of flupenthixol on reward palatability during post-training noncontingent re-exposure to the sucrose reward in either a control 3-h or novel 23-h food-deprived state. Flupenthixol, although effective in blocking the Pavlovian goal approach, was without effect on palatability or the increase in reward palatability induced by the upshift in motivational state. This noncontingent re-exposure provided an opportunity for instrumental incentive learning, the process by which rats encode the value of a reward for use in updating reward-seeking actions. Flupenthixol administered prior to the instrumental incentive learning opportunity did not affect the increase in subsequent off-drug reward-seeking actions induced by that experience. These data suggest that although dopamine signaling is necessary for Pavlovian incentive motivation, it is not necessary for changes in reward experience, or for the instrumental incentive learning process that translates this experience into the incentive value used to drive reward-seeking actions, and provide further evidence that Pavlovian and instrumental incentive learning processes are dissociable.     

Knowing our Reasons: Distinctive Self-Knowledge of Why We Hold Our Attitudes and Perform Actions

This paper argues that subjects at least sometimes learn why they hold an attitude or perform an action in a distinctive first-personal way, i.e., they learn of those facts in a manner that mere observers cannot. Subjects have this first-personal self-knowledge in virtue of first-personal self-knowledge of the reasons for which they hold an attitude or perform an action—their motivating reasons. This paper focusses on one’s reasons for holding an attitude. So, it is not just that subjects have distinctive access to the fact that they, say, believe that q; they also have distinctive access to the fact that they believe that p for the reason that p. I argue for this position contra the prevailing orthodoxy. Philosophers and psychologists often deny that subjects have distinctive access to why they hold their attitudes. Indeed, even many of those who claim that subjects can use a special method to learn that they have a given attitude deny that this method provides knowledge of why one holds that attitude.     

Reward tampering problems and solutions in reinforcement learning: a causal influence diagram perspective

Can humans get arbitrarily capable reinforcement learning (RL) agents to do their bidding? Or will sufficiently capable RL agents always find ways to bypass their intended objectives by shortcutting their reward signal? This question impacts how far RL can be scaled, and whether alternative paradigms must be developed in order to build safe artificial general intelligence. In this paper, we study when an RL agent has an instrumental goal to tamper with its reward process, and describe design principles that prevent instrumental goals for two different types of reward tampering (reward function tampering and RF-input tampering). Combined, the design principles can prevent reward tampering from being an instrumental goal. The analysis benefits from causal influence diagrams to provide intuitive yet precise formalizations.