We rst introduce GOLEM, a Multi-Agent world that we designed in order to study:-diierent social attitudes and personalities in interaction and, in particular , attitudes in delegating tasks to other agents (search for help) and in adopting goals of others (help);-reasoning about delegating and adopting tasks and about the other agents' personality. We then shortly illustrate the diierent forms ...

Although the ability to detect deception is critical in many professional contexts, most observers (including professional lie-catchers) are able to identify deceivers at the level of chance only. Further, almost all studies of deception detection have used low-stakes deception scenarios in determining deceptive behavior and training effectiveness. We evaluated the effectiveness of a comprehens...

In this paper, I argue that deceptive placebo use can be morally permissible, on the grounds that the deception involved in the prescription of deceptive placebos can differ in kind to the sorts of deception that undermine personal autonomy. In order to argue this, I shall first delineate two accounts of why deception is inimical to autonomy. On these accounts, deception is understood to be ini...

Deception remains a hotly debated topic in evolutionary and behavioural research. Our understanding of what impedes or facilitates the use and detection of deceptive signals in humans is still largely limited to studies of verbal deception under laboratory conditions. Recent theoretical models of non-human behaviour have suggested that the potential outcome for deceivers and the ability of rece...

There is a puzzle about why self-deception, a process that obscures the truth, is so pervasive in human behavior given that tracking the truth seems important for our survival and reproduction. William von Hippel and Robert Trivers argue that, despite appearances, there is good reason to think that self-deception is an adaptation by arguing: (1) self-deception leads to a positive self-perceptio...

This research has three goals: first, to find out how prevalent online deception is within a sample of Israeli users, second, to explore the underlying motivations to deceive online, and third, to discover the emotions that accompany online deception. A web-based survey was distributed in 14 discussion groups, and the answers of 257 respondents were analyzed. It was found that, while most of th...

TheGuilty Knowledge Test (GKT) has been used extensively to model deception. An association between the brain evoked response potentials and lying on the GKT suggests that deception may be associated with changes in other measures of brain activity such as regional blood flow that could be anatomically localized with event-related functional magnetic resonance imaging (fMRI). Blood oxygenation ...

Problems with self-report measures for smoking motivate the use of biochemical tests in treatment trials for smoking. These biochemical tests, unfortunately, are not perfect. In this paper, we present an algebraic model of bias in treatment trials for smoking. Bias is expressed in terms of the deception rate among continued smokers in a control group, the relative deception rate among continued...

We studied decision making in situations in which there is a monetary incentive to take risk, and in which the risk taking option sometimes involves deception. We conducted a within participant experiment in which we compared risk taking in deception conditions to pure (non-deceptive) gambles with equivalent risks and outcomes. We confirmed the fourfold pattern of risk attitudes in both conditi...