A Study On The Influence Of Different Cognitive Style In The Feature Induction When Categoriazation Was Uncertain

Category research included category formation and feature prediction. And the research of feature prediction when categorization is uncertain is an important part of feature prediction. There are theoretical senses to inspect how people induce when categorization is uncertain.At present the arguments of the feature prediction when categorization is uncertain were mainly between category-based induction and feature association induction. And category-based induction included single-category theory and rational model. Both theories agree that when categorization is uncertain, people will choose a target category, then make the induction. The difference between the two theories is that single-category theory agrees people only pay attention to the feature properties in target category, while rational model believes that people are not only concerned with the feature properties of the target category, but also the feature properties of non-target categories. Feature association induction agrees the feature associations between the feature of example and the predicted feature.Murphy and Ross's research put forward representativeness, proved representativeness impacted feature predicting, but diagnostic did not. Zhang Juan and Mo Lei raised representativeness included category representativeness and objective representativeness. One is the feature proportion of the objective members in target category, called objective representativeness. The other is the feature proportion of all members in target category, called category representativeness. But both of them didn't separate the roles on feature predicting. Wu Jun certified the presence of category representativeness, and separated the roles between objective representativeness and category representativeness. But the study didn't reveal the result of people's chooses.The study of cognitive style revealed that cognitive style impacted picture predicting, field independences tended to the relevant project, while field dependences tended to the whole project. Our study consider that cognitive style impact the process of prediction. Field independences will choose objective representativeness, while field dependences will choose category representativeness. Experiment One explores whether cognitive style will impact feature prediction based on under four conditions. In Eye movement experiment, we do further exploration on the role mechanism.The results indicate that when objective representativeness balanced and category representativeness discord, field dependents prior to choosing either of them randomly, field independents prior to choosing category representativeness; when objective representativeness discord and category representativeness balanced, field dependents prior to choosing category representativeness, field independents prior to choosing either of them randomly; when both objective representativeness and category representativeness balanced, both field independents and field dependents choose one of them randomly; when both objective representativeness and category representativeness discord, field dependents prior to choosing category representativeness, field independents prior to choosing category representativeness. In Eye movement experiment, there exists difference between target categories and non-target categories, objective items and category items. The study indicate that cognitive style will impact feature prediction when categorization is uncertain, it meets anticipations.