Cognition and emotion interact in important ways to shape ongoing behaviors. In this study, we investigated the interaction between conflict-driven executive control adjustments and emotion during a face-word Stroop-like paradigm. Neutral and negative images were employed to manipulate emotion. We were particularly interested in contrasting two hypotheses of the impact of emotion on conflict ad...

Three optimal dividend models are considered for which the underlying risk process is a spectrally negative Lévy process. The first one concerns the classical dividends problem of de Finetti for which we give sufficient conditions under which the optimal strategy is of barrier type. As a consequence, we are able to extend considerably the class of processes for which the barrier strategy proves...

In a commentary in Nature, Rodney Brooks1 proposed that something is missing from our models of living and behaving systems. I would like to suggest that it is not something undiscovered that is missing, but something old that has been passed over without sufficient examination. What is missing from most “modern” conceptions of behavioral mechanisms may be a sufficient understanding of a remark...

1 . Introduction Let us consider the common generic problem of causing a network to produce a given desired output signal. A typical block diagram is illustrated in Fig. 1. We are able to select the input vin(s) arbitrarily, and it is desired to produce a certain specified output vout(s). The problem is that there is an unwanted disturbance vd(s) which also affects the output. We have no contro...

Normalization has been recognized as a necessary preprocessing step in a variety of high-throughput biotechnologies. A number of normalization methods have been developed specifically for microarrays, some general and others tailored for certain experimental designs. All methods rely on assumptions about data characteristics that are expected to stay constant across samples, although some make ...