Contextual interference processing during fast categorisations of facial expressions

We examined interference effects of emotionally associated background colours during fast valence categorisations of negative, neutral and positive expressions. According to implicitly learned colour-emotion associations, facial expressions were presented with colours that either matched the valence of these expressions or not. Experiment 1 included infrequent non-matching trials and Experiment 2 a balanced ratio of matching and non-matching trials. Besides general modulatory effects of contextual features on the processing of facial expressions, we found differential effects depending on the valance of target facial expressions. Whereas performance accuracy was mainly affected for neutral expressions, performance speed was specifically modulated by emotional expressions indicating some susceptibility of emotional expressions to contextual features. Experiment 3 used two further colour-emotion combinations, but revealed only marginal interference effects most likely due to missing colour-emotion associations. The results are discussed with respect to inherent processing demands of emotional and neutral expressions and their susceptibility to contextual interference.     

I 5683 you: dialing phone numbers on cell phones activates key-concordant concepts

When people perform actions, effects associated with the actions are activated mentally, even if those effects are not apparent. This study tested whether sequences of simulations of virtual action effects can be integrated into a meaning of their own. Cell phones were used to test this hypothesis because pressing a key on a phone is habitually associated with both digits (dialing numbers) and letters (typing text messages). In Experiment 1, dialing digit sequences induced the meaning of words that share the same key sequence (e.g., 5683, LOVE). This occurred even though the letters were not labeled on the keypad, and participants were not aware of the digit-letter correspondences. In Experiment 2, subjects preferred dialing numbers implying positive words (e.g., 37326, DREAM) over dialing numbers implying negative words (e.g., 75463, SLIME). In Experiment 3, subjects preferred companies with phone numbers implying a company-related word (e.g., LOVE for a dating agency, CORPSE for a mortician) compared with companies with phone numbers implying a company-unrelated word.     

Objective work–nonwork conflict: From incompatible demands to decreased work role performance

Research on work–nonwork conflict (WNC) is based on the assumption that incompatible demands from the work and the nonwork domain hamper role performance. This assumption implies that role demands from both domains interact in predicting role performance, but research has been largely limited to main effects. In this multi-source study, we analyze the incompatibility of demands by testing the interaction of work and nonwork demands on task performance and organizational citizenship behavior (OCB). The sample consisted of 61 employees of a German hospital and we used three independent sources of data: self-ratings of work demands, partner-ratings of nonwork demands, and colleague-ratings of performance. Results from hierarchical regression analyses revealed an interaction effect of work and nonwork demands on OCB, but not on task performance. We conclude that people maintain their effort invested in task-related aspects of the job even when conflicts between work and nonwork demands exist, but that they reduce their investment in activities that are perceived as more marginal and extra-role.     

The role of partners for employees' recovery during the weekend

We examined the effects of positive and negative experiences with the partner (absorption in joint activities and conflict with the partner) during the weekend on affective states at the beginning of the following work week and tested whether recovery experiences (psychological detachment, relaxation, and mastery experiences) mediated these effects. In total, 269 university faculty members completed online surveys before and after the weekend. Hierarchical regression analyses revealed that absorption in joint activities with the partner predicted recovery experiences during the weekend and increased positive affective states (vigor, joviality, serenity) at the beginning of the following work week. Relaxation mediated the effects of absorption in joint activities on positive affective states. Conflict with the partner increased negative affective states (negative activation, fatigue), but was unrelated to recovery experiences. Our findings emphasize the importance of experiences with the partner for employees' recovery and show that the social environment of employees matters for their recovery.     

Mapping the tip of the tongue--deprivation, sensory sensitisation, and oral haptics

We investigated the impact of food deprivation on oral and manual haptic size perception of food and non-food objects. From relevant theories (need-proportional perception, motivated perception, frustrative nonreward, perceptual defence, and sensory sensitisation) at least four completely different competing predictions can be derived. Testing these predictions, we found across four experiments that participants estimated the length of both non-food and food objects to be larger when hungry than when satiated, which was true only for oral haptic perception, while manual haptic perception was not influenced by hunger state. Subjectively reported hunger correlated positively with estimated object size in oral, but not in manual, haptic perception. The impact of food deprivation on oral perception vanished after oral stimulations even for hungry individuals. These results favour a sensory sensitisation account maintaining that hunger itself does not alter oral perception but the accompanying lack of sensory stimulation of the oral mucosa. Both oral and manual haptic perception tended to underestimate actual object size. Finally, an enhancing effect of domain-target matching was found, ie food objects were perceived larger by oral than by manual haptics, while non-food objects were perceived larger by manual than by oral haptics.     

Usability,aesthetics and emotions in human–technology interaction

In the past, research on human–technology interaction has almost exclusively concentrated on aspects of usefulness and usability. Despite the success of this line of research, its narrow perspective has recently become a target for criticism. To explain why people prefer some systems over others, factors such as aesthetic qualities and emotional experiences play an important role in addition to instrumental aspects. In the following, we report three experiments that illustrate the importance of such factors. In the first experiment, we study the role of emotions in human–technology interaction by using Scherer's ( 1984 1984) component theory of emotions as a theoretical foundation. A combination of methods is derived from that theory and employed to measure subjective feelings, motor expressions, physiological reactions, cognitive appraisals, and behaviour. The results demonstrate that the manipulation of selected system properties may lead to differences in usability that affect emotional user reactions. The second experiment investigates the interplay of instrumental and non-instrumental system qualities. The results show that users' overall appraisal of a technical device is influenced by both groups of qualities. In the third experiment, we join the approaches of the first two studies to analyse the influence of usability and aesthetics within a common design. The results indicate that systems differing in these aspects affect the perception of instrumental and non-instrumental qualities as well as the users' emotional experience and their overall appraisal of the system. Summarizing our results, we present a model specifying three central components of user experience and their interrelations (CUE-Model). The model integrates the most important aspects of human–technology interaction and hints at a number of interesting issues for future research.     

Optimism and Positivity Biases in Performance Appraisal Ratings: Empirical Evidence from Professional Soccer

Using unique assessment data for players from a German Bundesliga club’s youth academy, we tested four core hypotheses on how player ratings and rater or ratee-related characteristics reflect the (prospective) optimism bias and (retrospective) positivity bias. The results indicate not only that the ratings of predicted and remembered performance are indeed higher than the talents’ actual performance throughout a season, but that these differences depend positively on the rater’s organizational experience and negatively on the amount of ratee data available. They also suggest that (prospective) anticipation is even more positively biased than (retrospective) recollection of player performances, underscoring the asymmetry between looking forward and looking backward.