1,721,032 research outputs found
Informazioni addizionali sui display e percezione della scarsità relativa dei prodotti a scafale
No full textThis study will evaluate if and in which way, the perception of numerosity
of retail products on the shelf can be conditioned by supplying appropriate
additional information, under the shape of Pop material. In two
laboratory experiments, 382 participants had to order in terms of increasing
numerosity of items, three different images depicting three different
shelf displays. Each of these images had varying degrees of additional information.
As theoretically predicted, our study shows that (ceteris paribus,
and in particular, in presence of an identical number of items characterizing
each set) the estimate of product numerosity within the compared
sets decreases monotonically when the amount of additional information
on display increases. The introduction, and, a fortiori, the increase
of additional information to certain products within the decision-making
context is capable of generating an illusion of scarcity within these sets of
products. Recent studies have shown that in certain circumstances within
a product category, consumers choose the product characterized by a
higher degree of shelf-based scarcity. Our study highlights that judgment
of relative scarcity can be conditioned by using appropriate Pop material
on display. Such material can be used in order to generate an illusion of
scarcity within a category in correspondence with certain sub-categories.
Similarly, within a sub-category, an illusion of scarcity could be produced
in order to give certain brands advantages over others
Phenomenology of illusory colors: All colors are illusory but some colors are more illusory than others
No full textIn this work, through a phenomenological analysis, we studied the perception of the chromatic illusion and illusoriness. The necessary condition for an illusion to occur is the discovery of a mismatchdisagreement between the geometricalphysical domain and the phenomenal one. The illusoriness is instead a phenomenal attribute related to a sense of strangeness, deception, singularity, mendacity and oddity. The main purpose of this work is to study the phenomenology of chromatic illusion vs. illusoriness useful to shed a new light in exploring the no-man land between “sensory” and “cognitive” processes not yet fully explored
Illusory Figures: From Logic to Phenomenology
No full textGestalt and cognitive-Bayesian approaches considered incompleteness as a necessary and sufficient factor for illusory figure formation. In this work, the role of incompleteness has been explored in terms of its inner logic and through an accurate phenomenal analysis of counterexamples and limiting or critical conditions. They demonstrated a bunch of logical issues and paradoxes, and, more importantly, that incompleteness is neither sufficient nor necessary to induce illusory figures. These issues are strongly reduced and possibly solved when the incompleteness is replaced by more simple concepts concerning interacting boundaries, grouping and surface filling-in processes during figure-ground segregation
Illusion and illusoriness in perceptual and cognitive development
No full textWithin modern vision science, the visual illusions reveal two issues that challenge scientists. The first issue is related to the mismatch/disagreement between the geometrical/physical domain and the phenomenal one. The necessary condition for the perception of a phenomenon as an illusion, is the perception of this mismatch. The second issue follows from the first one and is related to at least two different visual levels emerging from each illusion: the perception of the illusion and the perception of the illusoriness. While the illusion is necessarily related to the presence and the perception of a mismatch between physical and phenomenal domains, the illusoriness is a perceptual attribute that is not necessarily related to the presence of a mismatch, but it can be perceived by itself and it is usually related to a sense of strangeness, singularity, quirk and oddity. Aim of this work is to study the perception of illusion vs. illusoriness. Differently from what recent neuroscience has stated we demonstrated, through some new phenomena here reported and studied in the entire life span development, that not all the illusions show the illusoriness and vice versa. Furthermore, not all the effects showing the illusoriness attribute are really illusions
Apparent motion by edge discontinuities
No full textWhen the eyes move vertically across a jagged diamond, a local shift (LS) of edge discontinuities and a global shape distortion (GD) (ie expansion/contraction opposite to that expected by the aperture effect) are perceived. These phenomena cannot be accounted for by a
local motion signals integration rule based either on the intersection of constraint lines or on the velocity vector summation. The threshold for GD perception and the salience of LS and GD (1 to 10 scale) were measured in two experiments by different methods and displays. In experiment 1 we induced GD through mimicking LS with a kinetic pattern constituted of a set of circular illusory apertures revealing drifting gratings. The point of subjective equality for compression/expansion was reached for gratings the linear extrapolations of which form an angle of 94.48. In experiment 2 observers followed a dot moving along the vertical elongation axis of a
static jagged diamond (with 708 or 908 angles), varying in the shape (triangular, wave, square), frequency, and amplitude of edge discontinuities. GD scores were correlated with LS scores that
were inversely related to frequency=amplitude ratios of triangular edge discontinuities. Data are partially accounted for by averaging neighbouring local motion-capture vectors. Results prove
that there are strong interrelations between phenomena in which visual motion affects visual localisation and phenomena involving apparent deformation of global shape
Un nuovo caso di movimento apparente dipendente da interazioni locali e globali lungo i contorni figurali
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