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21.
Elizabeth G. Conlon Donnamay T. Brown Garry F. Power Shannon A. Bradbury 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(3):322-339
This study aimed to determine if difficulties extracting signal from noise explained poorer coherent motion thresholds in older individuals, particularly women. In four experimental conditions the contrast of the signal and noise dots used in a random dot kinematogram was manipulated. Coherence thresholds were highest when the signal dots were of a lower contrast than the noise dots and lowest when the signal dots were of a higher contrast than the noise dots. In all conditions the older group had higher coherence thresholds than the younger group, and women had higher thresholds than men. Significant correlations were found between coherence thresholds and self-reported driving difficulties in conditions in which the signal dots had to be extracted from noise only. The results indicate that older individuals have difficulties extracting signal from noise in cluttered visual environments. The implications for safe driving are discussed. 相似文献
22.
《Quarterly journal of experimental psychology (2006)》2013,66(11):2210-2221
The theory of direct perception suggests that observers can accurately judge the mass of a box picked up by a lifter shown in a point-light display. However, accurate perceptual performance may be limited to specific circumstances. The purpose of the present study was to systematically examine the factors that determine perception of mass, including display type, lifting speed, response type, and lifter's strength. In contrast to previous research, a wider range of viewing manipulations of point-light display conditions was investigated. In Experiment 1, we first created a circumstance where observers could accurately judge lifts of five box masses performed by a lifter of average strength. In Experiments 2–5, we manipulated the spatial and temporal aspects of the lift, the judgement type, and lifter's strength, respectively. Results showed that mass judgement gets worse whenever the context deviates from ideal conditions, such as when only the lifted object was shown, when video play speed was changed, or when lifters of different strength performed the same task. In conclusion, observers' perception of kinetic properties is compromised whenever viewing conditions are not ideal. 相似文献
23.
《Quarterly journal of experimental psychology (2006)》2013,66(5):876-894
How accurate are explicit judgements about familiar forms of object motion, and how are they made? Participants judged the relations between force exerted in kicking a soccer ball and variables that define the trajectory of the ball: launch angle, maximum height attained, and maximum distance reached. Judgements tended to conform to a simple heuristic that judged force tends to increase as maximum height and maximum distance increase, with launch angle not being influential. Support was also found for the converse prediction, that judged maximum height and distance tend to increase as the amount of force described in the kick increases. The observed judgemental tendencies did not resemble the objective relations, in which force is a function of interactions between the trajectory variables. This adds to a body of research indicating that practical knowledge based on experiences of actions on objects is not available to the processes that generate judgements in higher cognition and that such judgements are generated by simple rules that do not capture the objective interactions between the physical variables. 相似文献
24.
Nadine Hauthal Pascale Sandmann Stefan Debener Jeremy D. Thorne 《Advances in cognitive psychology / University of Finance and Management in Warsaw》2013,9(2):53-61
A number of studies have investigated changes in the perception of visual motion
as a result of altered sensory experiences. An animal study has shown that
auditory-deprived cats exhibit enhanced performance in a visual movement
detection task compared to hearing cats (Lomber,
Meredith, & Kral, 2010). In humans, the behavioural evidence
regarding the perception of motion is less clear. The present study investigated
deaf and hearing adult participants using a movement localization task and a
direction of motion task employing coherently-moving and static visual dot
patterns. Overall, deaf and hearing participants did not differ in their
movement localization performance, although within the deaf group, a left visual
field advantage was found. When discriminating the direction of motion, however,
deaf participants responded faster and tended to be more accurate when detecting
small differences in direction compared with the hearing controls. These results
conform to the view that visual abilities are enhanced after auditory
deprivation and extend previous findings regarding visual motion processing in
deaf individuals. 相似文献
25.
Piotr Styrkowiec Remigiusz Szczepanowski 《Advances in cognitive psychology / University of Finance and Management in Warsaw》2013,9(4):202-215
The analysis of reaction time (RT) distributions has become a recognized standard
in studies on the stimulus response correspondence (SRC) effect as it allows
exploring how this effect changes as a function of response speed. In this
study, we compared the spatial SRC effect (the classic Simon effect) with the
motion SRC effect using RT distribution analysis. Four experiments were
conducted, in which we manipulated factors of space position and motion for
stimulus and response, in order to obtain a clear distinction between positional
SRC and motion SRC. Results showed that these two types of SRC effects differ in
their RT distribution functions as the space positional SRC effect showed a
decreasing function, while the motion SRC showed an increasing function. This
suggests that different types of codes underlie these two SRC effects. Potential
mechanisms and processes are discussed. 相似文献
26.
We investigated the interaction between motion parallax and binocular disparity cues in the perception of surface shape and depth magnitude by the use of the random dot stimuli in which these cues specified sinusoidal depth surfaces undulating with different spatial frequencies. When ambiguous motion parallax is inconsistent with unambiguous disparity cue, the reasonable solution for the visual system is to convert the motion signal to the flow on the surface specified by disparity. Two experiments, however, found that the visual system did not always use this reasonable solution; observers often perceived the surface specified by a composite of the two cues, or the surface specified by parallax alone. In the perception of this composite of the two cues, the apparent depth magnitude increased with the increase of the depth magnitude specified by both cues. This indicates that the visual system can combine the depth magnitude information from parallax and disparity in an additive fashion. The interference with parallax by disparity implies that the parallax processing is not independent of the disparity processing. 相似文献
27.
Michiteru Kitazaki 《The Japanese psychological research》2000,42(2):77-90
The present study investigated the spatial interaction between the generic view and accidental view. First, the generic-view principle was applied to the three-dimensional motion of a wire-frame cube. Second, the effects of inner rotating dots and generic/accidental views of inner bars on an accidental view of a cube were investigated to show the spatial interaction between generic and accidental views. This investigation revealed that the generic view of a rotating cube generated a clearer three-dimensional perception than the accidental view, which is consistent with the generic-view principle. Both the unambiguous three-dimensional cue of inner dots and the generic view of inner bars "captured" the depth perception of the accidental view of the rotating cube. This finding suggests that the generic-view principle not only works locally, but then propagates globally. Further, it indicates how the visual system implements the generic-view principle to incorporate more complicated scenes. 相似文献
28.
Hitoshi Honda 《The Japanese psychological research》2000,42(4):207-212
Three subjects were asked to judge the position of small spots of light flashed before, during or after rapid translational motion of the background grating pattern. Mislocalization of the spots was observed when the background moved during or immediately after presentation of the spot. In both cases, mislocalization always occurred in the direction of the fixation point. Furthermore, this mislocalization occurred only when the background moved in the opposite direction to the visual half-field in which the spot appeared. That is to say, a spot to the right of the fixation point was mislocalized when its background moved to the left, but not when it moved to the right, and the converse was also true. This finding was interpreted as reflecting a long-term adaptation to the optokinetic stimulation that we experience during forward and backward locomotion. 相似文献
29.
Philip T. Reiss Hila Z. Gvirts Rotem Bennet Alisa Kanterman Nardine Fahoum Simone G. Shamay-Tsoory 《Multivariate behavioral research》2019,54(4):530-541
We propose a novel approach to the analysis of synchronized three-dimensional motion in dyads. Motion recorded at high time resolution, as with a gaming device, is preprocessed in each of the three spatial dimensions by spline smoothing. Synchrony is then defined, at each time point, as the cosine between the two individuals’ estimated velocity vectors. The approach is extended to allow a time lag, allowing for the analysis of leader-follower dynamics. Mean square cosine over the time range is proposed as a scalar summary of dyadic synchrony, and this measure is found to be positively associated with cognitive empathy. 相似文献
30.
Hannah F. Behrendt Wolfgang Scharke Beate Herpertz-Dahlmann Kerstin Konrad Christine Firk 《Infant mental health journal》2019,40(2):234-247
Social-Emotional competencies evolve early in life. For example, early emotion regulation is learned primarily in the context of mother–child interaction, which may allow for maternal influences to shape children's social-emotional development. The aim of the current study was to longitudinally examine maternal determinants of children's early social-emotional development in a community-based sample of first-time mothers (N = 61, aged 22–39 years). Specifically, we used structural equation modeling to examine how maternal emotion regulation difficulties and subclinical depression directly and indirectly, through sensitivity and postnatal bonding, assessed at 6 to 8 months predicted child outcomes at 12 to 16 months. We found that mothers’ sensitivity predicted fewer social-emotional and behavioral problems and that stronger bonding predicted fewer problems and more social-emotional competencies. Emotion regulation difficulties were significantly associated with depressive symptoms; yet, when accounting for shared variances, both factors differentially predicted less positive child outcomes such that more difficulties indirectly, through poorer bonding, predicted greater delay in competencies, and more symptoms indirectly, through less sensitivity, predicted more problems. Current findings underline the significance of maternal factors impacting the quality of mother–child interaction for children's positive development. Potential implications for early prevention programs to support children who are otherwise at risk for negative emotional outcomes due to mothers’ emotional state postpartum are discussed. 相似文献