Implement a Computer Mouse Control for Quadriplegic Disability Using Camera

Purpose The purpose of the current study was to evaluate the social and cognitive underpinnings of miscommunication during an interactive listening task. Method An eye and computer mouse–tracking visual-world paradigm was used to investigate how a listener's cognitive effort (local and global) and decision-making processes were affected by a speaker's use of ambiguity that led to a miscommunication. Results Experiments 1 and 2 found that an environmental cue that made a miscommunication more or less salient impacted listener language processing effort (eye-tracking). Experiment 2 also indicated that listeners may develop different processing heuristics dependent upon the speaker's use of ambiguity that led to a miscommunication, exerting a significant impact on cognition and decision making. We also found that perspective-taking effort and decision-making complexity metrics (computer mouse tracking) predict language processing effort, indicating that instances of miscommunication produced cognitive consequences of indecision, thinking, and cognitive pull. Conclusion Together, these results indicate that listeners behave both reciprocally and adaptively when miscommunications occur, but the way they respond is largely dependent upon the type of ambiguity and how often it is produced by the speaker.

Download Full-text

Comparative evaluation of WIMP and immersive natural finger interaction: a user study on CAD assembly modeling

Virtual Reality ◽

10.1007/s10055-021-00543-0 ◽

2021 ◽

Author(s):

Marius Fechter ◽

Benjamin Schleich ◽

Sandro Wartzack

Keyword(s):

User Interfaces ◽

User Study ◽

Spatial Location ◽

Ease Of Use ◽

Natural Interaction ◽

Assembly Modeling ◽

3D Space ◽

Computer Mouse ◽

Study Results ◽

Assembly Procedure

AbstractVirtual and augmented reality allows the utilization of natural user interfaces, such as realistic finger interaction, even for purposes that were previously dominated by the WIMP paradigm. This new form of interaction is particularly suitable for applications involving manipulation tasks in 3D space, such as CAD assembly modeling. The objective of this paper is to evaluate the suitability of natural interaction for CAD assembly modeling in virtual reality. An advantage of the natural interaction compared to the conventional operation by computer mouse would indicate development potential for user interfaces of current CAD applications. Our approach bases on two main elements. Firstly, a novel natural user interface for realistic finger interaction enables the user to interact with virtual objects similar to physical ones. Secondly, an algorithm automatically detects constraints between CAD components based solely on their geometry and spatial location. In order to prove the usability of the natural CAD assembly modeling approach in comparison with the assembly procedure in current WIMP operated CAD software, we present a comparative user study. Results show that the VR method including natural finger interaction significantly outperforms the desktop-based CAD application in terms of efficiency and ease of use.

Download Full-text

Detecting faking-good response style in personality questionnaires with four choice alternatives

Psychological Research ◽

10.1007/s00426-020-01473-3 ◽

2021 ◽

Author(s):

Merylin Monaro ◽

Cristina Mazza ◽

Marco Colasanti ◽

Stefano Ferracuti ◽

Graziella Orrù ◽

...

Keyword(s):

Impression Management ◽

Time Pressure ◽

Response Style ◽

Mixed Design ◽

Faking Good ◽

Personality Inventories ◽

Validity Scale ◽

Computer Mouse ◽

Positive Impression Management ◽

Personality Questionnaires

AbstractDeliberate attempts to portray oneself in an unrealistic manner are commonly encountered in the administration of personality questionnaires. The main aim of the present study was to explore whether mouse tracking temporal indicators and machine learning models could improve the detection of subjects implementing a faking-good response style when answering personality inventories with four choice alternatives, with and without time pressure. A total of 120 volunteers were randomly assigned to one of four experimental groups and asked to respond to the Virtuous Responding (VR) validity scale of the PPI-R and the Positive Impression Management (PIM) validity scale of the PAI via a computer mouse. A mixed design was implemented, and predictive models were calculated. The results showed that, on the PIM scale, faking-good participants were significantly slower in responding than honest respondents. Relative to VR items, PIM items are shorter in length and feature no negations. Accordingly, the PIM scale was found to be more sensitive in distinguishing between honest and faking-good respondents, demonstrating high classification accuracy (80–83%).

Download Full-text

Evaluation of Child–Computer Interaction Using Fitts’ Law: A Comparison between a Standard Computer Mouse and a Head Mouse

Sensors ◽

10.3390/s21113826 ◽

2021 ◽

Vol 21 (11) ◽

pp. 3826

Author(s):

Cristina Sanchez ◽

Vanina Costa ◽

Rodrigo Garcia-Carmona ◽

Eloy Urendes ◽

Javier Tejedor ◽

...

Keyword(s):

Motor Control ◽

Inertial Sensor ◽

Psychomotor Development ◽

Fine Motor ◽

Input Devices ◽

Fitts Law ◽

Computer Mouse ◽

Adults And Children ◽

Study Participants ◽

Computer Interaction

This study evaluates and compares the suitability for child–computer interaction (CCI, the branch within human–computer interaction focused on interactive computer systems for children) of two devices: a standard computer mouse and the ENLAZA interface, a head mouse that measures the user’s head posture using an inertial sensor. A multidirectional pointing task was used to assess the motor performance and the users’ ability to learn such a task. The evaluation was based on the interpretation of the metrics derived from Fitts’ law. Ten children aged between 6 and 8 participated in this study. Participants performed a series of pre- and post-training tests for both input devices. After the experiments, data were analyzed and statistically compared. The results show that Fitts’ law can be used to detect changes in the learning process and assess the level of psychomotor development (by comparing the performance of adults and children). In addition, meaningful differences between the fine motor control (hand) and the gross motor control (head) were found by comparing the results of the interaction using the two devices. These findings suggest that Fitts’ law metrics offer a reliable and objective way of measuring the progress of physical training or therapy.

Download Full-text

Office Environment Syndrome Study: Part II

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/154193129804200804 ◽

1998 ◽

Vol 42 (8) ◽

pp. 639-642

Author(s):

Alan Hedge ◽

William A. Erickson

Keyword(s):

Case Reports ◽

Case Control ◽

Self Report ◽

Respirable Dust ◽

Diary Study ◽

Climate Conditions ◽

Office Environment ◽

Work Posture ◽

Computer Mouse ◽

Settled Dust

A longitudinal self-report diary study of SBS cases and controls identified from buildingwide surveys of 4 office buildings is described. Self-report diaries were distributed to a total of 214 workers in the 4 buildings, and complete returns were obtained for 123 workers (57% return rate). Climate conditions (CO, CO2, formaldehyde, respirable dust mass (PM3.5) and particulate counts (0.3 μm, 0.5 μm, 1 μm, 5 μm), settled dust, air temperature, %RH, illuminance) were measured at each workstation. Ergonomic factors (observed work posture, office type, desk paper coverage, desk clutter, computer, mouse, keyboard tray, age of chair, chair arms, and plants, were measured at each workstation. Results showed no differences in prevailing climate conditions measured at case/control workstations. However, case reports of symptoms and environment conditions generally were worse than those for controls, and these reports showed periodicity, peaking late each day. The differences between reports by cases and controls generally remained consistent throughout the duration of the study.

Download Full-text