In search of the M-Gram: The structure of organization in free recall

This paper reviews three major classes of structural models of episodic and semantic memory which have been proposed to describe the organization of permanent memory. Although semantic memory workers have developed methods for obtaining representations of these models from empirical data, students of episodic memory generally have not. A method is presented for extracting representations of memory structure using output order information from a free recall learning task. It is shown that this method can be embedded within each of the three general models of memory structure to produce graphic representations of those structures. These representations may be obtained for individuals or for group data, and in some cases the nature and extent of individual differences in organizational structure can be characterized. A final section of the paper demonstrates the validity of the method using both real and simulated data, shows that the method is sensitive even to small differences in organizational structure, and illustrates the utility of this approach with an analysis of part-whole transfer.     

Decision processes in verifying category membership statements: Implications for models of semantic memory

Current models of semantic memory assume that natural categories are well-defined. Specific predictions of two such models, the Smith, Shoben, and Rips (1974a) two-stage feature comparison model and the Glass and Holyoak (1974/75) ordered search model, were tested and disconfirmed in Experiment I. We propose an alternative model postulating fuzzy categories represented as sets of characteristic properties. This model, combined with a Bayesian decision process, accounts for the results of three additional experiments, as well as for the major findings in the semantic memory literature. We argue that people verify category membership statements by assessing similarity relations between concepts rather than by using information which logically specifies the truth value of the sentence. Our data also imply that natural categories are fuzzy rather than well-defined.     

Motivated remembering efforts during tip-of-the-tongue states

Hart (1965) argues that the feeling of knowing in tip-of-the-tongue (TOT) states monitors memory content and motivates retreival efforts. Although a number of studies have examined the memory-monitoring accuracy of feelings of knowing and not-knowing, no studies have focused directly on the hypothesized motivational function of these feeling states. This second function of memory feeling states is investigated in this study by assessing the degree to which TOT and Don't Know (DK) states interfere with a subject's ability to perform well on a concurrent task. Subjects studied a list of arbitrary word pairs for 3, 5, or 7 seconds and then provided Recall, TOT, or DK reports in an immediate recall test. Performance on the simple number-probe task that followed each memory report was poorer on TOT trials than on DK trials. This effect did not vary as a function of encoding time. Since covert memory searches were possible on both TOT and DK trials, it is concluded that the performance decrement observed on TOT trials is due to the fact that covert TOT target searches command processing capacity that might otherwise go to the concurrent number-probe task. The absence of an encoding time effect suggests that TOT states do not monitor the associative strength of target traces as Hart (1967) has proposed. The findings in this study are interpreted as providing support for the proposition that the feeling of knowing in the TOT state influences the setting of capacity-allocation priorities in the memory system.     

Life history and vocational interests

To obtain some information concerning the antecedents of various forms of vocational interests, scores on the 22 basic interest scales of the Strong Vocational Interest Blank (SVIB) were correlated with 389 life history or autobiographical data items. Items yielding significant correlations were clustered on the basis of item content. The clusters obtained for the business management, science, and adventure scales are presented and discussed. Subsequently, certain general conclusions are drawn concerning the life history correlates of inventoried vocational interests.     

Externalism and the Content of Moral Motivation

In his fetishist argument, Michael Smith raises an important question: What is the content of the motivational states that constitute moral motivation? Although the argument has been widely discussed, this question has not received the attention it deserves. In the present paper, I use Smith’s argument as a point of departure for a discussion of how advocates of externalism as regards moral judgements can account for moral motivation. More precisely, I explore various explanations of moral motivation that externalists can employ to answer the question Smith poses.     

COMMENTARY ON ELIZABETH COREY'S INTERPRETATION OF MICHAEL OAKESHOTT

Elizabeth Corey suggests that in order to understand Michael Oakeshott's worldview one should pay special attention to two subjects, religion and aesthetics, and analyze the connection between these two realms and the idea of practical life in general and of politics in particular. Her book provides a sympathetic but also critical conversation with Oakeshott's ideas, ultimately offering us a coherent picture of the place of the religious, poetical, and political in the totality of his thought. Corey persuasively shows that the major ideas of the mature Oakeshott originated in his earlier religious convictions and that his philosophy of aesthetics, contrary to what his critics claimed, fit nicely in the general framework of his thought.