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101.
Marie‐Amélie Martinie Laurent Milland Thierry Olive 《Social and Personality Psychology Compass》2013,7(9):680-688
This article provides a general overview of cognitive dissonance research with the induced compliance paradigm. We begin by describiang how dissonance affects individuals' attitude change and address issues related to measurement of attitude. Next, we describe the arousal component of dissonance, how it has been measured and the issues that have been raised about its nature. Finally, we explore the emotional component of dissonance and review different ways for measuring and identifying the negative affect associated to dissonance. We conclude by claiming that a more intensive study of the process of dissonance, and particularly of its arousal and emotional components, will allow a more in‐depth understanding of the mental processes involved in cognitive dissonance. 相似文献
102.
103.
Laurent Dollé Jacques Droulez Daniel Bennequin Alain Berthoz Guillaume Thibault 《Advances in cognitive psychology / University of Finance and Management in Warsaw》2015,11(4):156-162
Few studies have explored how humans memorize landmarks in complex multifloored
buildings. They have observed that participants memorize an environment either
by floors or by vertical columns, influenced by the learning path. However, the
influence of the building’s actual structure is not yet known. In order to
investigate this influence, we conducted an experiment using an object-in-place
protocol in a cylindrical building to contrast with previous experiments which
used rectilinear environments. Two groups of 15 participants were taken on a
tour with a first person perspective through a virtual cylindrical three-floored
building. They followed either a route discovering floors one at a time, or a
route discovering columns (by simulated lifts across floors). They then
underwent a series of trials, in which they viewed a camera movement reproducing
either a segment of the learning path (familiar trials), or performing a
shortcut relative to the learning trajectory (novel trials). We observed that
regardless of the learning path, participants better memorized the building by
floors, and only participants who had discovered the building by columns also
memorized it by columns. This expands on previous results obtained in a
rectilinear building, where the learning path favoured the memory of its
horizontal and vertical layout. Taken together, these results suggest that both
learning mode and an environment’s structure influence the spatial memory of
complex multifloored buildings. 相似文献
104.
Visual attention has long been known to be drawn to stimuli that are physically salient or congruent with task-specific goals. Several recent studies have shown that attention is also captured by stimuli that are neither salient nor task relevant, but that are rendered in a colour that has previously been associated with reward. We investigated whether another feature dimension—orientation—can be associated with reward via learning and thereby elicit value-driven attentional capture. In a training phase, participants received a monetary reward for identifying the colour of Gabor patches exhibiting one of two target orientations. A subsequent test phase in which no reward was delivered required participants to search for Gabor patches exhibiting one of two spatial frequencies (orientation was now irrelevant to the task). Previously rewarded orientations robustly captured attention. We conclude that reward learning can imbue features other than colour—in this case, specific orientations—with persistent value. 相似文献
105.
Brain imaging studies reliably localize a region of visual cortex that is especially responsive to visual words. This brain specialization is essential to rapid reading ability because it enhances perception of words by becoming specifically tuned to recurring properties of a writing system. The origin of this specialization poses a challenge for evolutionary accounts involving innate mechanisms for functional brain organization. We propose an alternative account, based on studies of other forms of visual expertise (i.e. bird and car experts) that lead to functional reorganization. We argue that the interplay between the unique demands of word reading and the structural constraints of the visual system lead to the emergence of the Visual Word Form Area. 相似文献
106.
Experiment 1 showed that the control mechanism based on a perception–movement coupling observed in certain goal-directed movement tasks (De Rugy, Montagne, Buekers, & Laurent, 2000; Montagne, Cornus, Glize, Quaine, & Laurent, 2000) can be extended to a stepping across an obstacle task. Regardless of the specificity of tasks, the initiation of regulations is a function of the amount of adjustment. Our participants organized their regulation later than long jumpers. Two additional experiments were conceived to investigate whether this control mechanism could be generalized to goal-directed locomotor displacements, with different constraints. The aim of Experiments 2 and 3 was to address the adaptation of this control mechanism by manipulating the obstacle width and the walking speed in a stepping across task. The results showed that the functioning of this control mechanism could be influenced by the spatiotemporal constraints. Participants' behavior depended on a perception–movement coupling. This study suggests the existence of a generic control mechanism based on a perception–movement coupling, and it emphasizes the adaptation of this type of control mechanism involved in goal-directed displacements. 相似文献
107.
Tziona Lugasi Marie Achille Tom Blydt-Hansen Marie-José Clermont Louis Geoffroy Laurent Legault Véronique Phan Lorraine E. Bell 《Journal of clinical psychology in medical settings》2013,20(3):361-372
Identity development represents a central task of adolescence. Identity achievement is characterized by a coherent sense of who one is following a period of exploration and can help navigate the challenges of adulthood. This study examined identity within a quality of life (QOL) context in 85 adolescents with a renal transplant or with Type 1 diabetes in comparison to 90 healthy controls. Results revealed significant differences in ideological identity, with patients showing higher levels of diffusion and controls showing higher levels of foreclosure. No differences with respect to interpersonal identity, QOL, perceived control over the QOL domains, and perceived opportunities for growth and development were found. Future research should assess identity and QOL over a longer period of time to determine whether differences between chronically ill and healthy young adults can be detected. 相似文献
108.
Laurent Itti 《Visual cognition》2013,21(6):1093-1123
We investigated the contribution of low-level saliency to human eye movements in complex dynamic scenes. Eye movements were recorded while naive observers viewed a heterogeneous collection of 50 video clips (46,489 frames; 4-6 subjects per clip), yielding 11,916 saccades of amplitude ≥2°. A model of bottom-up visual attention computed instantaneous saliency at the instant each saccade started and at its future endpoint location. Median model-predicted saliency was 45% the maximum saliency, a significant factor 2.03 greater than expected by chance. Motion and temporal change were stronger predictors of human saccades than colour, intensity, or orientation features, with the best predictor being the sum of all features. There was no significant correlation between model-predicted saliency and duration of fixation. A majority of saccades were directed to a minority of locations reliably marked as salient by the model, suggesting that bottom-up saliency may provide a set of candidate saccade target locations, with the final choice of which location of fixate more strongly determined top-down. 相似文献
109.
In this paper, the links between cognitive constraints, visual behaviours, and perceptual judgements are examined. Two experiments investigated the perceptual processes employed during same-different judgement tasks. In Experiment 1, experts' eye movements (i.e., number of fixations and fixation duration) were consistent across discrepant source and target conditions where the number of displaced elements was manipulated. In contrast, novices decreased the number of fixations employed as the number of elements displaced increased. The findings are consistent with the view that both experts and novices process information in a manner (relational or attributional) that constrains the type of visual search used (low or high sensitive to attributional change). In Experiment 2, manipulation of target presentation confirmed that recognition was viewpoint dependent for both expert and novice players. The degradation in performance was accompanied by a change in the visual search behaviours employed by experts, which confirmed thr strength of the search–cognition–performance links 相似文献
110.
Vigouroux L Ferry M Colloud F Paclet F Cahouet V Quaine F 《Human movement science》2008,27(3):396-407
During the application of fingertip forces with simultaneous flexion of the four fingers, namely index, middle, ring, and little fingers, a stable force sharing among fingers is adopted. Several studies have hypothesized that this stable force sharing is established to minimize unnecessary rotational moments (different from the main flexion moments). This principle labeled "minimization of secondary moments" is presented in the literature as a principle used by the central nervous system to solve musculoskeletal redundancy. However, this principle has only been tested with one solicited degree of freedom and in one finger posture. Our study tests this principle with various degrees of freedom solicited as secondary moments and in two different finger postures. Participants (n=6) were asked to apply a downward vertical force using their four fingers with the forearm placed in two different configurations: a "horizontal" condition (involving flexion/extension and pronation/supination at the wrist joint) and a "vertical" condition (involving flexion/extension and radial/ulnar deviation at the wrist joint). Additionally, two finger postures were tested in each forearm configuration: in the first, the distal inter-phalangeal joints (DIP) were extended and the proximal inter-phalangeal joints (PIP) highly flexed. In the second finger posture, both DIP and PIP joints were flexed. The resultant four-finger force and the relative involvement of each finger in the resultant four-finger force (force sharing) were analyzed. Results showed that the finger postures did not influence the finger force sharing, showing that the minimization of the secondary moment principle was stable among the finger joint angle configurations. Nonetheless, the relative involvement of each finger was dependent on the secondary degree of freedom solicited (pronation/supination vs. radial/ulnar). The modifications of the finger force sharing between the "horizontal" and "vertical" conditions were in accordance with the principle of minimization of the secondary moments. 相似文献