State Representation with Perceptual Constancy Based on Active Motion

2010 ◽  
pp. 100-109
Author(s):  
Manabu Gouko ◽  
Yuichi Kobayashi
Keyword(s):  
State Representation ◽  
Perceptual Constancy ◽  
Active Motion

Infusing Perception with Imagination

2018 ◽  
Author(s):  
Derek H. Brown
Keyword(s):  
Case Studies ◽  
Amodal Completion ◽  
Perceptual Constancy

This chapter explores the broad thesis that most if not all perceptual experiences are infused or soaked with imaginings. To begin, the author articulates a sense of imagination useful for this discussion, avoids some pitfalls, and incorporates the result into a schematic guidance principle. The thought behind the principle is that imaginative contributions to perceptual experiences are self-generated ingredients to perception that have a reasonably direct, ampliative impact on the relevant perceptual experiences. This framework is then applied to three sets of case studies: object-kind and object-sameness experiences (Strawson 1970); colour (Macpherson 2012); and amodal completion (Nanay 2010) and perceptual constancy. Although the case studies have interesting differences, they all conform to the guidance principle. Since each has the potential to independently justify the thesis that perceptual experiences are infused with imaginings, they collectively provide sound motive to provisionally endorse it.

Functions of Same-Tracking

2017 ◽  
Author(s):  
Ruth Garrett Millikan
Keyword(s):  
Relative Location ◽  
Perceptual Constancy ◽  
Object Constancy ◽  
The Difference

There are non-uniceptual same-tracking mechanisms, mechanisms that same-track not in order to implement storage of information about their targets, but merely as an aid to the identification of further things. Examples are the various mechanisms of perceptual constancy, self-relative location trackers, object-constancy mechanisms, and same-trackers for real categories. There are also several kinds of unicepts, hence, of unitrackers, procedural, substantive, attributive. What begins as a non-uniceptual same-tracker might or might not be redeployed to serve also as a procedural unitracker, or a procedural unitracker might be redeployed to serve also as a substance unitracker or an attribute unitracker. This is possible because the difference between affordances, substances, and attributes is not a basic ontological distinction but is relative to cognitive use.

Art and Ambiguity

2018 ◽  
Author(s):  
John O’Dea
Keyword(s):  
Perceptual Experience ◽  
Three Dimensional ◽  
Empirical Work ◽  
Visual Interpretation ◽  
Perceptual Constancy ◽  
Multistable Perception ◽  
State Of Affairs

This chapter defends a solution to the problem of variable appearances that co-occur with perceptual constancy. In conditions which are non-ideal, yet within the range of perceptual constancy, we see things veridically despite a puzzling “appearance” which is suggestive of a non-veridical state of affairs. For example, a tilted coin is often taken to have an “elliptical appearance”. This chapter defends Gestalt-shift approach, according to which these appearances are in fact illusory, but not part of normal perceptual experience. The experience of ellipticality when viewing a tilted coin, it is argued, arises from something like a brief and unstable Gestalt shift to a different visual interpretation of the scene, of the kind that E. H. Gombrich argued artists invoke when painting a three-dimensional scene on a flat canvas. Recent empirical work on multistable perception is used to show how this might work.

scholarly journals Generalized Ornstein-Uhlenbeck model for active motion

2019 ◽  
Vol 100 (3) ◽  
Author(s):  
Francisco J. Sevilla ◽  
Rosalío F. Rodríguez ◽  
Juan Ruben Gomez-Solano
Keyword(s):  
Active Motion

Clinical Outcomes After Aggressive Active Early Motion and Modified Kleinert Regimens: Comparison of 2 Consecutive Cohorts

Hand ◽  
2021 ◽  
pp. 155894472110172
Author(s):  
Kaisa Jokinen ◽  
Arja Häkkinen ◽  
Toni Luokkala ◽  
Teemu Karjalainen
Keyword(s):  
Quality Of Life ◽  
Range Of Motion ◽  
Grip Strength ◽  
Clinical Outcomes ◽  
Flexor Tendon ◽  
Hand Grip Strength ◽  
Active Motion ◽  
Hand Grip ◽  
Active Range Of Motion

Background Modern multistrand repairs can withstand forces present in active flexion exercises, and this may improve the outcomes of flexor tendon repairs. We developed a simple home-based exercise regimen with free wrist and intrinsic minus splint aimed at facilitating the gliding of the flexor tendons and compared the outcomes with the modified Kleinert regimen used previously in the same institution. Methods We searched the hospital database to identify flexor tendon repair performed before and after the new regimen was implemented and invited all patients to participate. The primary outcome was total active range of motion, and secondary outcomes were Disabilities of Arm, Shoulder, and Hand; grip strength; globally perceived function; and the quality of life. Results The active range of motion was comparable between the groups (mean difference = 14; 95% confidence interval [CI], −8 to 36; P = .22). Disabilities of Arm, Shoulder, and Hand; grip strength; global perceived function; and health-related quality of life were also comparable between the groups. There was 1 (5.3%) rupture in the modified Kleinert group and 4 (15.4%) in the early active motion group (relative risk = 0.3; 95% CI, 0.04-2.5; P = .3). Conclusions Increasing active gliding with a free wrist and intrinsic minus splint did not improve the clinical outcomes after flexor tendon injury at a mean of 38-month follow-up.

scholarly journals Rototaxis: Localization of active motion under rotation

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Yuanjian Zheng ◽  
Hartmut Löwen
Keyword(s):  
Active Motion

scholarly journals Low Dimensional State Representation Learning with Reward-shaped Priors

2021 ◽  
Author(s):  
Nicolo Botteghi ◽  
Ruben Obbink ◽  
Daan Geijs ◽  
Mannes Poel ◽  
Beril Sirmacek ◽  
...  
Keyword(s):  
Representation Learning ◽  
State Representation ◽  
Low Dimensional

Up to five-week delay in primary repair of Zone 2 flexor tendon injuries: outcomes and complications

2021 ◽  
pp. 175319342110244
Author(s):  
Giovanni Munz ◽  
Andrea Poggetti ◽  
Luca Cenci ◽  
Anna Rosa Rizzo ◽  
Marco Biondi ◽  
...  
Keyword(s):  
Flexor Tendon ◽  
Primary Repair ◽  
Early Mobilization ◽  
Exercise Programme ◽  
Tendon Injuries ◽  
Level Of Evidence ◽  
Active Motion ◽  
Active Flexion ◽  
Surgical Methods ◽  
Flexor Tendon Injuries

We report the outcomes of delayed primary repair of flexor tendons in Zone 2 in 31 fingers and thumb (28 patients) averaging 15 days (range 4–37) after injury in 2020. The delay was longer than usual due to the COVID-19 pandemic. The tendons were repaired with a 6-strand core suture (M-Tang method) or a double Tsuge suture and a peripheral suture. This was followed by an early, partial-range, active flexion exercise programme. Adhesions in four digits required tenolysis. These patients were not with longest delay. Outcomes of two improved after tenolysis. The other two patients declined further surgery. One finger flexor tendon ruptured in early active motion. This was re-repaired, and final outcome was good. Overall excellent and good results using the Tang criteria were in 27 out of 31 fingers and thumbs (87%). The time elapsed between the injury and surgery is not an important risk factor for a good outcome, rather it depends on proper surgical methods, the surgeon's experience and early mobilization, properly applied. Adhesions may occur, but they can be managed with tenolysis. Level of evidence: IV

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