Abstract: This ICIS deliverable concerns the research proposal as accepted by the Radboud University Nijmegen and the DECIS Lab/TRT-NL and the first results of pilot studies regarding the effect of music to influence the mood of participants. The first pilot study revealed that males react differently to music as mood manipulation than females, that is, males are less affected by music as a mood manipulation. The second pilot study was intended to disambiguate the male response from social-unwillingness to discuss their mood versus no effect at all of the music as mood manipulation. The method to measure mood implicitly, however, did not seem to be a reliable measure. However, the explicit measure revealed a difference in negative feelings for both males and females for the two different mood manipulations (happy vs. sad music).
Abstract: previous research addressed change blindness and the role of human cognition, but not yet the influence of mood on change blindness. The levels-of-focus hypothesis and attentional flexibility research support the hypothesis that a positive mood increases performance for detecting peripheral changes in a change blindness task. Two studies revealed increased performance in a positive mood; the first showed better detection of central changes, whereas in the second study this was found for peripheral changes. Both studies revealed evidence for visual sensing. Although the hypothesis that a positive mood leads to a broader visual attention focus or higher visual attentional flexibility was not supported, the results suggest that people in a positive mood rely more on the process of visual sensing.
Abstract: Previous research addressed the role of human cognition in change blindness, but not yet the influence of mood on change blindness. The levels-of-focus hypothesis and attentional flexibility research support the hypothesis that a positive mood enhances detection of peripheral changes in a change blindness task. The conducted study revealed increased performance on peripheral changes for participants in a positive mood. Although the hypothesis that a positive mood leads to a broader visual attention focus or higher visual attentional flexibility was not supported, the results suggest that people in a positive mood rely more on the process of visual sensing.
Abstract: In two studies, we investigated the role of mood states in dominated behavioral choices. Past research has shown that mood effects on judgment
and decision-making can be pervasive. Yet, the role of mood in dominated choices has so far been neglected. The present research represents a
first empirical examination of mood effects on dominated choices.We measured (Study 1) or manipulated (Study 2) mood states in participants
who made a series of choices in a gambling game. In this choice task without trade-offs, participants were provided with information about the
outcomes and probabilities associated with each choice option. The strategy to maximize the expected mean outcome implied the application
of a straightforward and logical rule: Always choose the dominant option with the highest expected value. It has been argued in the literature
that mood should have little or no impact when preferences are clear or strong. Still, we expected that mood states would affect even these
dominated choices, building on previous work that showed that positive mood states enhance flexibility, creativity, and explorative behavior.
The results showed that decisions made in a happier mood were less often in accordance with the logical rule than decisions made in a sadder
mood. To conclude, happier mood states are associated to a lesser extent with decisions in accordance with a rule-based strategy that
maximizes expected mean outcomes in dominated choices. Copyright # 2010 John Wiley & Sons, Ltd.
Abstract: In this internal report two experiments that served as pilots for manipulating and measuring mood are described. The used mood manipulations were presentation of subliminal faces and presentation of supraliminal faces. Four different mood measures were used, namely the implicit positive and negative affect test (IPANAT), a word completion test, the Self Assessment Manikin (SAM) and an explicit mood measure. Both pilot studies indicated that subliminal or supraliminal priming with faces do not serve as reliable mood manipulations. Furthermore, some of the mood measured proved to be unreliable in measuring mood.
Abstract: In this position paper a number of hypotheses are outlined concerning the effect of three measurable human factors, namely subjective stress, arousal and mood, on human decision making performance; taking into account the amount of risk involved in the decision. The proposed domain of application involves critical situations: situations in which time-limits, uncertainty and possibly dire consequences provide an ideal context to apply the results. A tangible objective is to provide the basis for a demonstrator which can measure subjective stress, arousal and mood on the job, provide runtime feedback and positively influence the human decision making process.
Abstract: In this position paper a number of hypotheses are posited concerning the effect of measurable human factors, such as subjective stress, arousal and mood, on the performance of human decision making; taking into account the amount of risk involved in the decision. The proposed domain of application is crisis management: a situation in which time-limits, uncertainty and possibly dire consequences provide an ideal context to assess the validity of our hypotheses. Experimentation involves both people in management functions and non-management functions. The final objective is to provide the basis for a demonstrator which can measure mood, arousal and subjective stress on the job, provide runtime feedback and ergo positively influence human decision making processes.
Abstract: This deliverable concerns the description of an experiment conducted to investigate whether mood influences personal moral decision making. Mood is known to influence decision making in several ways. People in a positive mood are believed to rely more on intuition and heuristics, whereas people in a negative mood are more deliberate and analytics. In a personal moral dilemma, an emotional response has to be suppressed to come to the most utilitarian decision, where utilitarian means the option with the most value, which leads to saving the most lives. We hypothesized that mood influences personal moral decision making in that people in a positive mood take longer to come to a utilitarian decision. Although te results indicate that people in a positive mood are slower at utilitarian decisions, people in a positive mood seem to respond slower to the personal moral dilemmas in general.