scholarly journals A Virtual Object-Location Task for Children: Gender and Videogame Experience Influence Navigation; Age Impacts Memory and Completion Time

2018 ◽  
Vol 9 ◽  
Author(s):  
David Rodriguez-Andres ◽  
Magdalena Mendez-Lopez ◽  
M.-Carmen Juan ◽  
Elena Perez-Hernandez
Keyword(s):  
Completion Time ◽  
Object Location ◽  
Virtual Object ◽  
Location Task

A Sophisticated Manipulation Aid in a Virtual Environment using Dynamic Constraints among Object Faces

1998 ◽  
Vol 7 (5) ◽  
pp. 460-477 ◽  
Author(s):  
Yoshifumi Kitamura ◽  
Amy Yee ◽  
Fumio Kishino
Keyword(s):  
Real Time ◽  
Virtual Environment ◽  
Collision Detection ◽  
Completion Time ◽  
Detection Method ◽  
Virtual Object ◽  
Efficient Tool ◽  
Dynamic Constraints ◽  
Visual Constraints ◽  
Intuitive Method

A natural and intuitive method is proposed to help a user manipulate an object in a virtual environment. The method does not need to assign special properties to the object faces in advance and does not require special hardware. Instead, it uses only the visual constraints of motion among object faces that are dynamically selected by a real-time collision detection method while the user manipulates the object. By constraining more than two faces during the user's manipulation, the proposed method provides an efficient tool for complicated manipulation tasks. First, the method of manipulation aid is described. Then several experiments demonstrate the effectiveness of this method, particularly when the user is requested to precisely place a virtual object in a certain location. Finally, as an application of the proposed manipulation aid, an experiment is conducted to compare the performances of a task (constructing a simple toy) in a real versus a virtual environment. Results show that the distance accuracy and completion time of the virtual task with the manipulation aid is close to that of the real task.

scholarly journals Licorice root components mimic estrogens in an object location task but not an object recognition task

2018 ◽  
Vol 103 ◽  
pp. 97-106 ◽  
Author(s):  
Payel Kundu ◽  
Donna L. Korol ◽  
Suren Bandara ◽  
Supida Monaikul ◽  
Caitlin E. Ondera ◽  
...  
Keyword(s):  
Object Recognition ◽  
Recognition Task ◽  
Licorice Root ◽  
Object Location ◽  
Location Task ◽  
Object Recognition Task

Developmental processes in audiovisual object recognition and object location

2012 ◽  
Vol 25 (0) ◽  
pp. 38
Author(s):  
Maeve M. Barrett ◽  
Fiona N. Newell
Keyword(s):  
Object Recognition ◽  
Response Times ◽  
Age Groups ◽  
Recognition Task ◽  
Simultaneous Presentation ◽  
Object Location ◽  
Developmental Processes ◽  
Location Task ◽  
Object Recognition Task ◽  
Target Locations

This study investigated whether performance in recognising and locating target objects benefited from the simultaneous presentation of a crossmodal cue. Furthermore, we examined whether these ‘what’ and ‘where’ tasks were affected by developmental processes by testing across different age groups. Using the same set of stimuli, participants conducted either an object recognition task, or object location task. For the recognition task, participants were required to respond to two of four target objects (animals) and withhold response to the remaining two objects. For the location task, participants responded when an object occupied either of two target locations and withheld response if the object occupied a different location. Target stimuli were presented either by vision alone, audition alone, or bimodally. In both tasks cross-modal cues were either congruent or incongruent. The results revealed that response time performance in both the object recognition task and in the object location task benefited from the presence of a congruent cross-modal cue, relative to incongruent or unisensory conditions. In the younger adult group, the effect was strongest for response times although the same pattern was found for accuracy in the object location task but not for the recognition task. Following recent studies on multisensory integration in children (e.g., Brandwein, 2010; Gori, 2008), we then tested performance in children (i.e., 8–14 year olds) using the same task. Although overall performance was affected by age, our findings suggest interesting parallels in the benefit of congruent, cross-modal cues between children and adults, for both object recognition and location tasks.

Effects of fuzziness in perception of stereoscopically presented virtual object location

1995 ◽  
Author(s):  
Akira Utsumi ◽  
Paul Milgram ◽  
Haruo Takemura ◽  
Fumio Kishino
Keyword(s):  
Object Location ◽  
Virtual Object

scholarly journals Pictorial gaze cues do not enhance long-tailed macaques’ performance on a computerised object-location task

2006 ◽  
Vol 73 (3) ◽  
pp. 308-314 ◽  
Author(s):  
Sarah-Jane Vick ◽  
Ido Toxopeus ◽  
James R. Anderson
Keyword(s):  
Object Location ◽  
Location Task ◽  
Gaze Cues

scholarly journals A Within-Subject Experimental Design using an Object Location Task in Rats

10.3791/62458 ◽  
2021 ◽  
Author(s):  
Gülberk Bayraktar ◽  
Kristoffer Højgaard ◽  
Luc Nijssen ◽  
Tomonori Takeuchi
Keyword(s):  
Experimental Design ◽  
Object Location ◽  
Location Task

A German version of the Intermittent Claudication Questionnaire (ICQ): cultural adaptation and validation

VASA ◽  
2012 ◽  
Vol 41 (5) ◽  
pp. 333-342 ◽  
Author(s):  
Kirchberger ◽  
Finger ◽  
Müller-Bühl
Keyword(s):  
Principal Component Analysis ◽  
Intermittent Claudication ◽  
Completion Time ◽  
Short Form ◽  
Principal Component ◽  
Component Analysis ◽  
German Version ◽  
Average Completion Time ◽  
Sf 36 ◽  
Related Quality

Background: The Intermittent Claudication Questionnaire (ICQ) is a short questionnaire for the assessment of health-related quality of life (HRQOL) in patients with intermittent claudication (IC). The objective of this study was to translate the ICQ into German and to investigate the psychometric properties of the German ICQ version in patients with IC. Patients and methods: The original English version was translated using a forward-backward method. The resulting German version was reviewed by the author of the original version and an experienced clinician. Finally, it was tested for clarity with 5 German patients with IC. A sample of 81 patients were administered the German ICQ. The sample consisted of 58.0 % male patients with a median age of 71 years and a median IC duration of 36 months. Test of feasibility included completeness of questionnaires, completion time, and ratings of clarity, length and relevance. Reliability was assessed through a retest in 13 patients at 14 days, and analysis of Cronbach’s alpha for internal consistency. Construct validity was investigated using principal component analysis. Concurrent validity was assessed by correlating the ICQ scores with the Short Form 36 Health Survey (SF-36) as well as clinical measures. Results: The ICQ was completely filled in by 73 subjects (90.1 %) with an average completion time of 6.3 minutes. Cronbach’s alpha coefficient reached 0.75. Intra-class correlation for test-retest reliability was r = 0.88. Principal component analysis resulted in a 3 factor solution. The first factor explained 51.5 of the total variation and all items had loadings of at least 0.65 on it. The ICQ was significantly associated with the SF-36 and treadmill-walking distances whereas no association was found for resting ABPI. Conclusions: The German version of the ICQ demonstrated good feasibility, satisfactory reliability and good validity. Responsiveness should be investigated in further validation studies.

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