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Shape, Spatial Relationships And Angles Of The Three-dimensional Object Recognition Priming Effect,

Posted on:2010-04-12Degree:MasterType:Thesis
Country:ChinaCandidate:L LianFull Text:PDF
GTID:2208360278478730Subject:Basic Psychology
Abstract/Summary:PDF Full Text Request
Object recognition has always being the frontline and the focus of the high-level visual studies. Object recognition is an important ability in human daily life,Adaptation of all human activities dependent on the participation of object recognition that the life can be carried out normally.The study of three-dimensional object recognition will not only help us fully understand the basic characteristics and the law of object identification in nature,but also help us deeply explain the basic models and laws of the human visual processing,there are also many important applied areas.Most of the existing studies in object recognition are focused on the two-dimensional experiments whether the research materials or result analysis.However,we live in a real world,much of what we saw is more three-dimensional objects.Researchers have done a great deal of work in this field,their models have already built a general framework of object recognition,and can reasonably explain the phenomena of many object recognition.But the object-centered theory and the view-centered theory are debate in many aspects of the interpretation of object recognition.So far,none of them can be completely described the phenomena of mental representation of the object recognition.On the basis of past researches,the main purpose of this study is:Refer two main theories of object recognition as the main framework;Integrate the old and the new learning paradigm,the priming paradigm with the mask paradigm;To make three-dimensional objects as experimental materials;Adopted identify task and classification task;Analysis the priming effect of the shape, spatial relation and view on the three-dimensional object recognition;Verify,complement and expand the cognitive processing mechanisms of object recognition;Explore the trend of the integration between two theories and the difficulties of the integration;At the same time,Establish experimental basis for researching the essence of human high-level vision and its development and utilization.Five experiments were conducted to find out features of priming:Shape,spatial relation and view effects on three-dimensional object recognition.Experiment 1 used the old and the new learning recognition paradigm,setted different lighting intensity to investigate the effects of lighting in object recognition,examined the perceptual constancy and to prepare for the next experiment;and setted three different levels of displacement to explore the effects of Geometric ions'(goens') spatial relation and to verify the viewpoint of the object-centered theory.Experiment 2 used the priming paradigm in the classification task,setted three different ISI,On the one hand,continue to investigate the effects of different levels of displacement in three-dimensional object recognition;On the other hand,More deeply to explore the effects of the component of object through three different priming methods.Experiment 3 continue to used the priming paradigm in the classification task,and manipulated the size and the spatial location of objects,On the one hand,continue to examine the effects of the part and the global in three-dimensional object recognition;on the other hand,deeply to study the effects of the spatial relation on three-dimensional object recognition through three different space distance.Experiment 4 used the learning and recognized paradigm and the mask paradigm,and manipulated the shape of geons and the spatial relation among geons,setted two different distract stimulus to study the priming effects of part and spatial relation,and to verify the viewpoint of the object-centered theory.Experiment 5 used the same experimental paradigm as experiment 4,and manipulated the rotational ways and rotational views of the tar stimulus,setted two stimulus types and two rotational ways and four combined models,used the indirect and direct tasks to study the priming effects of view in object recognition,and to verify the viewpoint of the view-centered theory.Colligate the results of the five series experiments and the related discussions,this study support the following conclusions:1 The luminance contrast didn't have effect on the three-dimensional object recognition.2 The shape of objects has effected on the three-dimensional object recognition.The three different levels of displacement of the two components has effected on the object recognition,and the impact is a hierarchy,the 'no displacement' condition was significantly faster than the 'half displacement' condition,the 'half displacement' condition was also faster than the 'full displacement' condition;The part priming effect and the global priming effect were both found; Small goens of the object has a larger effect on the object recognition;The priming effect of part is related to ISI,the longer time interval,the smaller priming effects of the part in the three-dimensional object recognition.3 The position of the prime stimulus and the tar stimulus and the distance between them have effected on the three-dimensional object recognition.The farther is the space distance,the larger is the impact on the object recognition. 4 The spatial relation of the small geons has the priming effect on the object recognition.The larger is the changes of the spatial relation,the more slowly is the speed of the object recognition.5 There were both view priming effect in direct task and indirect task.When the samples within the same categories are also same,the recognition of object in explicit task was faster than in implicit task,regardless of the view of the object is the same or not in study test.When the samples come from different categories,the recognition of objects in the same view has also been better than not in the same view.The size of priming effect is affected by the rotational ways of the object,the rotational ways(three-dimensional spatial rotation) is closer to the daily experience,the priming effect is smaller.
Keywords/Search Tags:three-dimensional object recognition, spatial relation, view, the object-centered theory, the view-centered theory
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