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Shape-deforming processes (e.g., squashing, bending, twisting) can radically alter objects' shapes. After such a transformation, some features are due to the object's original form, while others are due to the transformation, yet it is challenging to separate the two. We tested whether observers can distinguish the causal origin of different features, teasing apart the characteristics of the original shape from those imposed by transformations, a process we call 'shape scission'. Using computer graphics, we created 8 unfamiliar objects and subjected each to 8 transformations (e.g., "twisted", "inflated", "melted"). One group of participants named transformations consistently. A second group arranged cards depicting the objects into classes according to either (i) the original shape or (ii) the type of transformation. They could do this almost perfectly, suggesting that they readily distinguish the causal origin of shape features. Another group used a digital painting interface to indicate which locations on the objects appeared transformed, with responses suggesting they can localise features caused by transformations. Finally, we parametrically varied the magnitude of the transformations, and asked another group to rate the degree of transformation. Ratings correlated strongly with transformation magnitude with a tendency to overestimate small magnitudes. Responses were predicted by both the magnitude and area affected by the transformation. Together, the findings suggest that observers can scission object shapes into original shape and transformation features and access the resulting representational layers at will.
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The human visual system reliably extracts shape information from complex natural scenes in spite of noise and fragmentation caused by clutter and occlusions. A fast, feedforward sweep through ventral ...
Many studies have shown that sentences implying an object to have a certain shape produce a robust reaction time advantage for shape-matching pictures in the sentence-picture verification task. Typica...
The significance of shape and surface information for face perception is well established, yet their relative contribution to recognition and their neural underpinnings await clarification. Here, we e...
Herein, we report a simple and robust strategy for preparing dual-responsive shape-switchable block copolymer (BCP) particles, which respond to subtle temperature and pH changes near physiological con...
Modulations in light intensity across a visual image could be caused by a flat object with varying pigmentation, such as wallpaper, or differential light reflection from a three-dimensional shape made...
CT and MRI based measurements of the pediatric airway has changed the age-old cone shape concept of the pediatric airway and define airway shape as elliptical structure. The cone shape was...
This study aims to evaluate the effectiveness of a Cloak Shape sham Pediatric Tuina device which can be applied in randomized controlled trials for Pediatric Tuina research.
Cricoid is considered the narrowest part with the shape of airway defined as elliptical with the subglottis as the narrowest region. This study using imaging modality (2D CT images) is do...
The purpose of this study was to assess PREVELLE Shape (CX002), with respect to safety and efficacy for one year following treatment, for correction of facial nasolabial folds and when app...
The purpose of this study is to evaluate the efficacy and safety of SHAPE Gel applied topically to adult patients with alopecia areata of the scalp.
The sensory discrimination of a pattern shape or outline.
Perception of shape and form of objects by TOUCH, via tactile stimuli.
The condition characterized by uneven or irregular shape of the head often in parallelogram shape with a flat spot on the back or one side of the head. It can either result from the premature CRANIAL SUTURE closure (CRANIOSYNOSTOSIS) or from external forces (NONSYNOSTOTIC PLAGIOCEPHALY).
The selecting and organizing of visual stimuli based on the individual's past experience.
The macroglial cells of EPENDYMA. They are characterized by bipolar cell body shape and processes that contact BASAL LAMINA around blood vessels and/or the PIA MATER and the CEREBRAL VENTRICLES.