Institut für Psychologie und Arbeitswissenschaft

92 Items

Recent Submissions
Asymmetric effects of false positive and false negative indications on the verification of alerts in different risk conditions

Wiczorek, Rebecca ; Meyer, Joachim (2016)

Indications from alerts or alarm systems can be the trigger for decisions, or they can elicit further information search. We report an experiment on the tendency to collect additional information after receiving system indications. We varied the proclivity of the alarm system towards false positive or false negative indications and the perceived risk of the situation. Results showed that false ...

Investigating benefits of likelihood alarm systems in presence of alarm validity information

Wiczorek, Rebecca ; Balaud, Magali ; Manzey, Dietrich (2015)

Providing operators additional information helping them to validate alarms has been found to be a countermeasure for problems related to the cry wolf effect (i.e., operators ignoring alarms). Adding information can be realized with likelihood alarm systems (LAS) or with access to alarm validity information (AVI). The two studies presented here examined behavior and performance consequences of t...

Implementing energy status in head-down cockpit displays: impact of augmented energy information on pilot’s performance

Müller, Simon ; Manzey, Dietrich ; Schreiter, Karolin ; Luckner, Robert (2015)

It is safety critical for pilots to be aware of the aircraft’s energy state in terms of proper altitude and airspeed. A loss of energy awareness is an important human factors issue in modern civil aircraft. In order to maintain the energy awareness and support the manual flying skills, several cockpit display concepts suggest to augment the current energy status of the aircraft on primary fligh...

Developing and validating an English version of the meCUE questionnaire for measuring user experience

Minge, Michael ; Thüring, Manfred ; Wagner, Ingmar (2016)

Based on the Component model of User Experience (CUE), a standardized questionnaire (meCUE) was developed measuring key aspects of user experience (UX) for interactive products. The questionnaire consists of 34 items and covers four components: product perceptions (usefulness, usability, visual aesthetics, status, commitment), user emotions (positive, negative), consequences of usage (intention...

Monitoring and cross-checking automation

Cymek, Dietlind Helene ; Jahn, S. ; Manzey, Dietrich (2016)

The present study addresses effects of human redundancy on automation monitoring and cross-checking. Thirty-six participants performed a multi-task, consisting of three subtasks that mimic basic work demands of operators in a control room of a chemical plant. One of the tasks was to monitor and cross-check a highly reliable and safety-critical automated process. Participants were randomly assig...

Image size influences visual search and perception of hemorrhages when reading Cranial CT: an eye-tracking study

Venjakob, Antje C. ; Marnitz, Tim ; Phillips, Peter ; Mello-Thoms, Claudia R. (2016)

Objective: The aim of this study was to explore reader gaze, performance, and preference during interpretation of cranial computed tomography (cCT) in stack mode at two different sizes. Background: Digital display of medical images allows for the manipulation of many imaging factors, like image size, by the radiologists, yet it is often not known what display parameters better suit human percep...

Driver cognitive workload

Ruff, Stefan (2017)

Using in-car speech interaction systems has become increasingly popular. However, the cognitive workload resulting from this and its consequences for the driver are not yet fully understand. This thesis therefore aims to better understand the consequences of driver cognitive workload regarding performance, subjective evaluation and physiological changes and to identify suitable non-intrusive ph...

Auswirkungen von bildbasierter Navigation unterschiedlicher Automationsgrade auf Leistung, Beanspruchung und Situationsbewusstsein von Chirurgen

Luz, Maria (2017)

Bildbasierte Navigation, auf Englisch image-guided navigation (IGN), unterstützt den Chirurgen bei der Navigation durch die unübersichtliche Patientenanatomie und bei der Erkennung von anatomischen Strukturen während eines chirurgischen Eingriffs. Das Prinzip der IGN besteht darin, die Lage von chirurgischen Instrumenten zu bestimmen und in Bilddaten wie den computertomographischen oder magnetr...

Brain connectivity during encoding and retrieval of spatial information: individual differences in navigation skills

Sharma, Greeshma ; Gramann, Klaus ; Chandra, Sushil ; Singh, Vijander ; Mittal, Alok Prakash (2017)

Emerging evidence suggests that the variations in the ability to navigate through any real or virtual environment are accompanied by distinct underlying cortical activations in multiple regions of the brain. These activations may appear due to the use of different frame of reference (FOR) for representing an environment. The present study investigated the brain dynamics in the good and bad navi...

ACT-R model: "Modeling of Visual Search and Influence of Item Similarity"

Lindner, Stefan ; Rußwinkel, Nele ; Ahrlt, Lennart ; Neufeld, Max ; Schattenhofer, Lukas (2017-05-31)

A modeling approach addressing visual search in an array of items of differing similarity is introduced. The model is able to capture the effects found in a study that varies target-distractor similarity (low vs. high), distractor-distractor similarity (low vs. high) of icons, target presence (present vs. absent) and the set size (8, 16 or 24 icons). To be able to simulate human visual search i...

Modified navigation instructions for spatial navigation assistance systems lead to incidental spatial learning

Gramann, Klaus ; Hoepner, Paul ; Karrer-Gauss, Katja (2017-02-13)

Spatial cognitive skills deteriorate with the increasing use of automated GPS navigation and a general decrease in the ability to orient in space might have further impact on independence, autonomy, and quality of life. In the present study we investigate whether modified navigation instructions support incidental spatial knowledge acquisition. A virtual driving environment was used to examine ...

Konzeption und Evaluation einer hochintegrativen Anzeige für Fahrassistenzsysteme im Pkw in einer handlungsorientierten Warnstrategie

Rhede, Johannes Georg (2017)

Im Bereich des assistierten Fahrens steht trotz der Unterstützung der Fahraufgabe durch technische Systeme der Mensch als Fahrzeugführer weiterhin im Mittelpunkt. Er muss Teile der Fahraufgabe selbständig ausführen und die Fahrassistenzsysteme überwachen, da er in der Verantwortung für die Fahrzeugführung verbleibt. Zur Unterstützung der Überwachungsaufgabe dienen grafische Anzeigen, die den St...

Der "Mere-Exposure-Effekt" in der Mensch-Technik-Interaktion und seine Auswirkungen auf das Nutzererleben

Vogel, Marlene (2016)

Der Umgang mit interaktiven Schnittstellen technischer Geräte gehört heute zum Alltag vieler Menschen. Diese Schnittstellen werden durch die zunehmende Funktionalität der Geräte komplexer. Beispielsweise sind die heutigen Mobiltelefone, sogenannte Smartphones, mit ihrer unterstützenden und umfangreichen Funktionalität nicht mehr aus dem Leben vieler Menschen wegzudenken. Dabei ist es nicht nur ...

Method generation for the evaluation of virtual buttons with multimodal feedback

Diwischek, Lisa (2016)

The main topic of this thesis is a method generation for the evaluation of virtual buttons with multimodal feedback. Virtual switches or buttons are becoming more present in the automotive domain, and force-sensing for activation combined with vibrational and auditory feedback (so-called 3D switches) is the latest evolutionary step in switching technology. To evaluate this new technology, a new...

Unexpected events and user experience

Gross, Alice Marlene (2016)

User Experience is a concept that extends traditional usability by providing a holistic perspective on the user’s interaction with technology. It is seen as an important part of successful product design (ISO 9241- 210, 2010). Strong competition fosters innovative user experience design and the development of new design techniques. One of the pillars of user experience are emotional reactions ...

ACT-Droid

Dörr, Lisa-Madeleine ; Russwinkel, Nele ; Prezenski, Sabine (2016)

ACT-Droid is a tool for directly connecting ACT-R with Android applications on smartphones or tablets. The advantage of this tool is that no prototyping of the application is needed. This tool is especially useful to evaluate applications according to usability by using general modeling approaches.

Towards a General Model of Repeated App Usage

Prezenski, Sabine ; Russwinkel, Nele (2016)

The main challenge of implementing cognitive models for usability testing lies in reducing the modeling effort, while including all relevant cognitive mechanisms, such as learning and relearning, in the model. In this paper we introduce a general cognitive modeling approach with ACT-R for hierarchical, list-based smartphone apps. These apps support the task of selecting a target, via navigating...

Human-robot spatial interaction in a hallway

Lauckner, Mathis (2016)

In general, previous research in human-robot interaction has provided evidence for the relevance of robotic motion behavior on positive impressions towards robots. In particular, a socially appropriate designed robotic distance behavior, avoiding personal space violations, has been reported to be essential for a comfortable human-robot spatial interaction. Unfortunately, human-robot proxemics l...

Human performance consequences of automated decision aids

Reichenbach, Juliane (2015)

Introducing automation intends to yield performance benefits, increase system safety and efficiency, and decrease costs. However, the intended benefits are often offset by negative effects such as complacency and automation bias, loss of situation awareness, and skill degradation. Automating systems is not an all-or-none decision, and degree of automation (DOA) has been shown to influence both...

Likelihood alarm systems

Balaud, Magali (2015)

Traditional alarm systems emit two types of outputs, namely alarms and non-alarms. They are therefore called binary alarm systems (BAS). Ideally, an alarm should go off only if a critical event occurs. This is unfortunately not the case and they tend to generate a lot of false alarms. This means that an alarm goes off even if there actually is no critical event. False alarms affect operators, w...