Papers by Riccardo Luccio
Gestalt theory, Jul 31, 2023
The elusive science
Giornale italiano di psicologia, 2020
Capitolo 6. Simulazione e ricampionamento
The Legacy of Gestalt Psychology - HumanaMente n. 17
Racolta di saggi sul significato della psicologia della Gestalt ogg
La significatività statistica e il suo senso
Cose grandi e cose piccole
Perception of causality: A dynamical analysis
The role of visual, spatial, and temporal cues in attenuating verbal overshadowing
Applied Cognitive Psychology, 2002
ABSTRACT In three experiments, we investigated the effects of visual, spatial, and temporal cues ... more ABSTRACT In three experiments, we investigated the effects of visual, spatial, and temporal cues in attenuating verbal overshadowing derived from the verbal recoding of visual stimuli. Participants studied a set of visual forms and were asked to form an image of each figure, rotate it and try to discover the two capital letters compounding each figure. Before performing the imagery task, participants were re-presented with a cue that was part of the original stimulus. In Experiment 1, verbal overshadowing effects were shown and attenuated through the re-presentation of a visual cue. In Experiments 2 and 3, encoding and retrieval conditions were manipulated according to their temporal and spatial characteristics. In Experiment 2, the cue could be either visual (the cardboard shape), spatial–temporal (the number corresponding to serial learning position), or both. Presentation order of the cue at retrieval could be either congruent or incongruent with stimuli presentation order at encoding. In Experiment 3, the temporal and spatial components of the task were separated, by having participants encode the stimuli according to either their temporal or their spatial presentation order. At retrieval, participants received one of three types of cues (visual, order, or visual+order). The results suggest that order information acts as a link between the two separate representations of figure and background, hence preventing verbal overshadowing at encoding (temporal component) or attenuating its influence at retrieval (spatial component). Copyright © 2002 John Wiley & Sons, Ltd.
Perception, Jun 1, 1989
The criteria used in performing mental rotation or mental folding tasks were studied with a parad... more The criteria used in performing mental rotation or mental folding tasks were studied with a paradigm that did not involve reaction times. The hypothesis was that, when perceptualorganizational factors come into conflict with the geometric features required for the correct execution of such tasks, it is the former that prevail. To verify this hypothesis two experiments were carried out. In experiment 1, subjects were asked to imagine quadrilaterals rotating round a rotation axis at different inclinations. Their responses were dependent both on the degree of tilt of the rotation axis and on the degree of tilt of the quadrilateral with respect to the rotation axis. Experiment 2 consisted of the mental execution of a folding task. In this case too, the responses depended on the degree of tilt of the folding axis and also on the complexity of the stimulus outline. In both experiments responses were divided into two groups: (i) geometrically correct responses and (ii) responses which, although incorrect, were based on perceptualorganizational criteria. In the light of the results, some theoretical implications regarding transformation operations executed by means of mental images are discussed.
La dinamica dell’anisotropia del campo visivo
De Sanctis e la psicologia italiana
PubMed, 1981
Dalla significatività statistica a quella clinica. Presentazione
Psicologia clinica dello sviluppo, 2008
Fechner’s Seelenfrage: The Place of the Soul in Psychology
Proceedings of Fechner Day, 2010
The usage of the term “soul” was banned from the psychological dictionaries at least from Angell’... more The usage of the term “soul” was banned from the psychological dictionaries at least from Angell’s famous interdict (1911). However, in the last few years a renewed interest for it is risen, from two independent sources: 1. the “naive” concept of soul owned by laymen; 2. the concepts of life after death and (im)mortality in children. Bering (2006) proposes three cognitive mechanisms, producing “illusions of personal immortality, of teleological authorship in the design of individual souls, and of natural events as having symbolic meaning”, forming “an organized ‘system’” in the human evolution under selective pressures. What is missing is an adequate consideration of what the soul is in the different human cultures. 150 years the Seelenfrage posed by Fechner (1861) is still unsolved, One must question whether the “mind”, that replaced the soul, is i) better defined than “soul”; ii) is more able to capture the complexity of our psychological system.
Phenomenal Influences on Fröhlich Effect
Proceedings of Fechner Day, 2010
In the Frohlich effect, the perceived onset of a moving stimulus is displaced in the direction of... more In the Frohlich effect, the perceived onset of a moving stimulus is displaced in the direction of the motion. Two experiments were conducted in order to verify if cognitive factors had an influence on the Frohlich effect. In the first one we studied the rule of the rectangular window in which the stimulus moves through three experimental conditions (without window condition, long window condition, short window condition), whereas in the second one we used an arrow as a stimulus instead of a rectangle. Our results not only replicated the Frohlich effect, but they also allowed us to control other factors that had an influence on our experimental setup: stimulus and window characteristics.
2. Perception of causality
John Benjamins Publishing Company eBooks, 2004
Regularity, Exposure Time and Perception of Numerosity
Perceptual and Motor Skills, Oct 1, 1986
Two experiments are described. In Exp. 1, subjects compared the apparent numerosity of two kinds ... more Two experiments are described. In Exp. 1, subjects compared the apparent numerosity of two kinds of dot patterns, regular vs irregular, with two different exposures (160 vs 2000 msec). In Exp. 2, the subjects had to estimate the numerosity of the same patterns, presented one at a time. Analysis showed a relative overestimation of the regular patterns in Exp. 1 but not in Exp. 2. In general an overestimation occurred with an increase in exposure. Such results support our hypothesis of two separate processes as the basis of the two kinds of performance (estimating vs comparison).
Behavior Research Methods, Feb 1, 2010
In confirmatory analysis of whether data have a circumplex structure, Browne's (1992) model has p... more In confirmatory analysis of whether data have a circumplex structure, Browne's (1992) model has played a major role. However, implementation of this model requires a dedicated program, CIRCUM, because the analysis routine is not integrated in any of the most widely used statistical software packages. Hence, data entry and graphical representation of the results require the use of one or more additional programs. We propose a package for the R statistical environment, termed CircE, that can be used to enter or import data, implement Browne's confirmatory analysis, and graphically represent the results. Using this new software, we put forward a new approach to assess the sustainability of theoretical models when the analysis is carried out at the level of questionnaire items. The CircE package (for either Mac OS X or Windows) and additional files may be downloaded from http://brm.psychonomic-journals.org/content/supplemental.
Cervello, mente, pensiero
il Mulino, 1985
The soul and the scientific psychology
Intersezioni, 2012
L'effetto placebo
Ricerche di psicologia, 2002
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Papers by Riccardo Luccio