Encoding of Marginal Utility across Time in the Human Brain

Marginal utility theory prescribes the relationship between the objective property of the magnitude of rewards and their subjective value. Despite its pervasive influence, however, there is remarkably little direct empirical evidence for such a theory of value, let alone of its neurobiological basis. We show that human preferences in an intertemporal choice task are best described by a model that integrates marginally diminishing utility with temporal discounting. Using functional magnetic resonance imaging, we show that activity in the dorsal striatum encodes both the marginal utility of rewards, over and above that which can be described by their magnitude alone, and the discounting associated with increasing time. In addition, our data show that dorsal striatum may be involved in integrating subjective valuation systems inherent to time and magnitude, thereby providing an overall metric of value used to guide choice behavior. Furthermore, during choice, we show that anterior cingulate activity correlates with the degree of difficulty associated with dissonance between value and time. Our data support an integrative architecture for decision making, revealing the neural representation of distinct subcomponents of value that may contribute to impulsivity and decisiveness

The Intention Determinants Of Recycling Behavior Among Malaysians

Penjanaan sisa-sisa buangan di Bumi semakin meningkat akibat pertumbuhan pesat penduduk, kekayaan kewangan pengguna bertambah baik dan pembangunan perindustrian berkembang pesat. Waste generation in the Earth is increasing as consequences of the rapid growth in population, consumers’ financial wealth improved as well as the industrial development

The wave equation for stiff strings and piano tuning

We study the wave equation for a string with stiffness. We solve the equation and provide a uniqueness theorem with suitable boundary conditions. For a pinned string we compute the spectrum, which is slightly inharmonic. Therefore, the widespread scale of 12 equal divisions of the just octave is not the best choice to tune instruments like the piano. Basing on the theory of dissonance, we provide a way to tune the piano in order to improve its consonance. A good solution is obtained by tuning a note and its fifth by minimizing their beats.Peer ReviewedPostprint (published version

X_System

The X_System makes the playing, writing, and learning of music – even when using unconventional tunings – more intuitive, more logical, more expressive, and better sounding. The X_System allows for: • different temperaments to be chosen at the flick of a switch; • tunings to be dynamically altered at the push of a lever; • the use of a special hexagonal button-field that allows for any given interval or chord always to have the same shape on that button-field; • consonant chords to have their consonance maximised, whatever the tuning actually chosen; • radical changes to be made to the timbral character of tones using a minimal number of controls; • a choice of keyboard mappings, which enable for the balance between number of intervals and octaves to be altered

Environmental Policy when People's Preferences are Inconsistent, Non-Welfaristic, or simply Not Developed

This paper discusses how a benevolent policy maker should act based on some, possibly non-welfaristic,ethical principle in cases where people's preferences are not perfectly informed,consistent and fully developed with regard to all goods, including all kinds of environmental goods, as is normally assumed in mainstream economic theory. When stated or revealed preferences do not reflect the maximization of individual welfare, it is argued that welfare,rather than preferences, has intrinsic value. However, it is also argued that properly designed stated preference methods may provide useful information about people’s views about alternative ethical ends, besides human well-being, and that policy makers should take such views seriously.ethics; environmental policy; environmental valuation; cost-benefit analysis; endogenous preferences; preference construction; irrationality; bounded rationality; cognitive dissonance; anthropocentrism

Research and resources in North American studies : plus ca change, plus c'est la même chose ; sixth scientific symposium Frankfurt – 6. Wissenschaftliches Symposium Frankfurt, Saturday, 7 October 2006, panel 4, 9:45 – 11:00 a.m.

Large American research libraries have been acquiring - by purchase and by lease - huge multi-disciplinary electronic collections of primary and secondary source materials. For example, the Digital Evans and Canadian Poetry easily make available to scholars primary materials that once were scattered in libraries across North America and Europe. The American State Papers, 1789 – 1838 collection allows easier searching of fragile rare materials. Collections made by libraries digitizing their own holdings, such the Archive of Early American Images from the John Carter Brown Library at Brown University, make research materials more discoverable and usable. Yet recent scholarship in American Studies by American and European scholars makes relatively little use of these new materials. Both disparities and congruities in what scholars use and what research libraries collect are apparent. Some simple reasons explain the dissonance. Furthermore, conversations with scholars suggest that materials and collections alone will not suffice to support research. Librarians’ skills and actions will increase the value of the new research materials

Comfort zone: Model or metaphor?

The comfort zone model is widespread within adventure education literature. It is based on the belief that when placed in a stressful situation people will respond by overcoming their fear and therefore grow as individuals. This model is often presented to participants prior to activities with a highly perceived sense of risk and challenge which arouses strong emotional and physical responses to novel tasks (e.g., ropes courses or rock climbing activities). Students are encouraged to think about ‘stretching themselves’ by moving outside their comfort zone, to expand their preconceived limits and by inference learn (and become better people). This paper explores theories from cognitive and social psychology, based on the work of Piaget and Festinger respectively, that underpin the comfort zone model. The perpetuation of this model which uses risk to promote situations of disequilibrium/dissonance does not find strong support in educational literature. It is therefore suggested that the comfort zone model be reframed as a metaphor, for possible discussion post activity, rather than being used as a model to underpin programming and pedagogy in adventure education settings

A dyadic perspective on retailer-supplier relationships through the lens of social capital

Social capital theory has received increasing attention as a lens through which to examine supply chain relationships and the value creation process. Despite the growing application of social capital and its three dimensions, namely cognitive, structural and relational capital, to inter-organizational research, few studies in reality have taken a dyadic perspective. Using a paired sample of retailer-supplier relationships from Korean fast-moving consumer goods sector, we explore the configuration of social capital dimensions, and the impact on strategic and operational performance. The results suggest three clusters of relationships, which differ significantly on at least two of the dimensions of social capital. Furthermore, these clusters show considerable differences with respect to both operational and strategic performance, particularly at the lower levels of social capital. We also examine the impact of a disparity between the retailer and supplier with respect to different dimensions of social capital, henceforth called dissonance. Of the four clusters that emerge, interestingly, only dissonance on the cognitive dimension is related to lower operational and strategic relationship performance. In investigating the implications of dissonance for the retailer and supplier individually, our results suggest that performance differs based on the magnitude and direction of the dissonance. Our results show that consequences of having social capital or not are not necessarily the same for the retailer and the supplier

The impact of asking intention or self-prediction questions on subsequent behavior: a meta-analysis

The current meta-analysis estimated the magnitude of the impact of asking intention and self-prediction questions on rates of subsequent behavior, and examined mediators and moderators of this question–behavior effect (QBE). Random-effects meta-analysis on 116 published tests of the effect indicated that intention/prediction questions have a small positive effect on behavior (d+ = 0.24). Little support was observed for attitude accessibility, cognitive dissonance, behavioral simulation, or processing fluency explanations of the QBE. Multivariate analyses indicated significant effects of social desirability of behavior/behavior domain (larger effects for more desirable and less risky behaviors), difficulty of behavior (larger effects for easy-to-perform behaviors), and sample type (larger effects among student samples). Although this review controls for co-occurrence of moderators in multivariate analyses, future primary research should systematically vary moderators in fully factorial designs. Further primary research is also needed to unravel the mechanisms underlying different variants of the QBE