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

Experimental design and data processing in a distance navigation problem for position of the object location

2021 ◽  
Vol 87 (3) ◽  
pp. 76-84
Author(s):  
O. V. Vladimirova ◽  
Yu. D. Grigoriev
Keyword(s):  
Experimental Design ◽  
Data Processing ◽  
Explicit Form ◽  
Reference Points ◽  
Object Location ◽  
Sensitivity Factor ◽  
Two Dimensional ◽  
Navigation Problem ◽  
Quadratic Equations

A problem of optimizing the configuration of a navigation measuring system is considered in terms of the experimental design using a distance navigation problem for position of the object location. It is shown that the stated problem is equivalent to the problem of A-optimal experimental design for a regression function (nonlinear in parameters) and can be reduced to a trigonometric model. The response function, Fisher’s information and the sensitivity factor of the navigation system in case of two and three beacons and correlated measurements are presented in an explicit form. Using the equivalence theorem for A-criterion in the case of two-dimensional (plane) distance problem we confirm again the Barabanovs’s result that matrixes of A-optimal designs are the Kolmogorov – Maltsev matrixes. A similar result holds for the D-optimality criterion in the considered case. The effect of the measurement correlation in a distance navigation problem with two and three reference points is considered. The formulas for the sensitivity factors expressed in terms of bearings on the reference points and intersection angle of object are derived. In addition to a problem of optimizing the network configuration, the data processing problem in two-dimensional distance navigation problem with two reference points is also considered. The location of the object is determined in two ways, i.e., using the geometrical method and method of resultants. In the first method the solution of a distance navigation problem comes to the consideration of two independent quadratic equations for determination of the first and the second coordinates of the object. The equations are obtained in the explicit form. The second method also leads to two quadratic equations for determination of the object location. This is an option of the exclusion method which provides for an explicit form of conditions ensuring the solution of the considered problem for determination of the object location. Examples are considered that confirm the stated conclusions.

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.

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

Identifying suboptimalities with factorial model comparison

2018 ◽  
Vol 41 ◽  
Author(s):  
Wei Ji Ma
Keyword(s):  
Experimental Design ◽  
Model Comparison ◽  
Process Models ◽  
Multiple Forms ◽  
Factorial Experimental Design ◽  
Factorial Model ◽  
Multiple Components ◽  
The Many

AbstractGiven the many types of suboptimality in perception, I ask how one should test for multiple forms of suboptimality at the same time – or, more generally, how one should compare process models that can differ in any or all of the multiple components. In analogy to factorial experimental design, I advocate for factorial model comparison.

Combining integrated systems-biology approaches with intervention-based experimental design provides a higher-resolution path forward for microbiome research

2019 ◽  
Vol 42 ◽  
Author(s):  
J. Alfredo Blakeley-Ruiz ◽  
Carlee S. McClintock ◽  
Ralph Lydic ◽  
Helen A. Baghdoyan ◽  
James J. Choo ◽  
...  
Keyword(s):  
Systems Biology ◽  
High Resolution ◽  
Experimental Design ◽  
Integrated Systems ◽  
Microbiome Research ◽  
Constructive Criticism

Abstract The Hooks et al. review of microbiota-gut-brain (MGB) literature provides a constructive criticism of the general approaches encompassing MGB research. This commentary extends their review by: (a) highlighting capabilities of advanced systems-biology “-omics” techniques for microbiome research and (b) recommending that combining these high-resolution techniques with intervention-based experimental design may be the path forward for future MGB research.

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