The interaction of semantic memory with storage and retrieval processes

A procedure for separating storage from retrieval (R. Chechile & D. L. Meyer, Journal of Mathematical Psychology, 1976, 14, 430–437) lead to the conclusion that memory development involves changes in both storage and retrieval. Nevertheless, these changes resulted from the interaction of storage and retrieval mechanisms with the age-related elaboration of the semantic memory system. This study shows that the memory improvement with age, between kindergarten and second grade, vanished when the meaningfulness of the materials were equated. The most plausible interpretation of the results is the hardware invariance hypothesis. According to that hypothesis, the memory apparatus for information processing is constant across ages, but the hardware is used more effectively if there is a better-developed semantic memory system.     

Episodic storage and retrieval in visuo-spatial tasks: evidence of indirect retrieval

Episodic storage contends that the relevant target and irrelevant distractor features of a display are processed and then stored together within the boundaries of an episode, and are linked in this way. Accordingly, the selective and “direct” retrieval of either a stored target or distractor should result in the “indirect” and unintended retrieval of the other stimulus. In the present investigation, interest focused upon spatial tasks and the “indirect” retrieval of prime distractor processing. The novel findings obtained supported the existence of the “indirect” retrieval of prime distractor processing in visuo-spatial tasks and, to a lesser extent, of the stored prime target event, consistent with identity tasks (i.e. bi-directional episodically-based retrieval). Clearly, more is retrieved than is presented (Hintzman, D. L. (1984). MINERVA 2: A simulation model of human memory. Behavior Research Methods, Instruments, & Computers, 16, 96–101. doi:10.3758/BF03202365), as an episodic storage structure would predict.     

A Bayesian procedure for separately estimating storage and retrieval components of forgetting

A Bayesian procedure was developed to estimate separately the probability of sufficient storage, θ_s, and the probability of successful retrieval, θ_τ, on an individual subject basis. The method involves a probabilistic analysis of the subject's performance on a task that randomly intermixes recall with recognition trials. Two experiments using the Brown-Peterson paradigm were performed to demonstrate and validate the estimation procedure. The experiments showed that both θ_s and θ_τ decrease as a function of increasing retention interval. The results of both experiments suggest the necessity of a two-factor theory for short-term memory.     

Memory storage and retrieval processes in category learning

The detailed course of learning is studied for categorization tasks defined by independent or contingent probability distributions over the features of category exemplars. College-age subjects viewed sequences of bar charts that simulated symptom patterns and responded to each chart with a recognition and a categorization judgment. Fuzzy, probabilistically defined categories were learned relatively rapidly when individual features were correlated with category assignment, more slowly when only patterns carried category information. Limits of performance were suboptimal, evidently because of capacity limitations on judgmental processes as well as limitations on memory. Categorization proved systematically related to feature and exemplar probabilities, under different circumstances, and to similarity among exemplars of categories. Unique retrieval cues for exemplar patterns facilitated recognition but entered into categorization only at retention intervals within the range of short-term memory. The findings are interpreted within the framework of a general array model that yields both exemplar-similarity and feature-frequency models as special cases and provides quantitative accounts of the course of learning in each of the categorization tasks studied.     

Associative storage and retrieval processes in person memory

In this article, a general associative storage and retrieval theory of person memory is proposed, and seven experiments that test various aspects of the theory are reported. Experiment 1 investigated memory for behavioral information that is congruent with, incongruent with, or irrelevant to a prior impression. The results indicated that incongruent events are best recalled and irrelevant events are most poorly recalled. Experiment 2 replicated this effect and demonstrated that there are systematic individual differences that are consistent with the general nomothetic model proposed. The results of Experiment 3 indicated that, relative to a baseline condition, adding incongruent items to the list increases the probability of recalling congruent items but has no effect on the recall of irrelevant items. Both effects are predicted by the model. Experiment 4 provided support for the retrieval assumptions of the theory by demonstrating that there is a systematic order in which various types of items are recalled, as well as consistent differences in interresponse times. Experiments 5 and 6 demonstrated that the model is relevant to situations in which data driven, as well as conceptually driven, processes are involved. Finally, Experiment 7 examined a special case in which the theory predicts greater recall of congruent than incongruent behavioral events. The results of all seven experiments provide converging evidence for a general theory of person memory, and they have implications for a number of issues related to the study of person memory and social judgment.     

REFERENCE: An APPLE II package for storage and retrieval of journal references

The package described here enables the user to maintain a “card index system” of journal references on floppy disk, with easy retrieval of references by author, subject, or combination of subjects.     

Influence of marihuana on storage and retrieval processe in memory

Following presentation and immediate free recall testing of 10 20-word lists, 48 Ss were divided into two groups, one of which received an oral dose of marihuana extract calibrated to 20 mg of Δ¹-THC and one of which received placebo. One hour later, all Ss were administered delayed recall, recognition, and order tests on the first set of words. Presentation of another set of 10 lists followed, and there were immediate recall and delayed recall, recognition, and order tests on these words. Performance of drug and placebo Ss did not differ significantly for any of the first delayed tests. However, the performance of drug Ss was poorer than that of placebo Ss on immediate recall, delayed recall, and delayed recognition of the second set of lists. We concluded that retrieval of information relevant to the occurrence or nonocurrence of an event was not affected by marihuana intoxication. Storage difficulties probably account for memory deficits due to the drug, and these difficulties appear to occur in the process of transferring information from short-term to long-term memory.     

Memory without organization: Properties of a model with random storage and undirected retrieval

A very simple spatial model of memory storage and retrieval is described, analyzed, and discussed. The postulated memory is without organization in the sense that neither the place of storage nor the order of search during retrieval is influenced by the nature of the information being stored or retrieved. The memory consists of a three-dimensional space containing a large number of homogeneously distributed loci at which data may be stored. Data received near each other in time are stored at nearby locations. Access is by an undirected expanding-sphere search. The model exhibits a wide variety of quantitatively and qualitatively humanlike behavior with respect to both standard learning and forgetting paradigms and with respect to frequency effects and other phenomena in word processing.     

Modeling storage and retrieval processes with clinical populations with applications examining alcohol-induced amnesia and Korsakoff amnesia

Multinomial processing tree models can provide for measures of underlying cognitive processes. In this paper, the Chechile [Chechile, R. A. (2004). New multinomial models for the Chechile-Meyer task. Journal of Mathematical Psychology, 48, 364-384] 6P model is described and applied to several applications involving clinical populations. The model provides for separate measures of storage and retrieval. Monte Carlo studies were conducted to examine the relative accuracy of two methods for obtaining an overall condition estimate for the 6P model, i.e., averaging estimates found for individuals versus pooling the multinomial frequency data before estimating the model parameters. The sampling studies showed that the pooling of frequencies resulted in more accurate parameter estimates. However, psychological assessment in clinical psychology requires precise measurement on an individual basis. In order to recover information about individuals from pooled frequency information, a modified jackknife method was advanced. The jackknife method is based on a contrast between the overall pooled frequency information and the pool frequency without the observations from a single individual. Another series of Monte Carlo simulations demonstrate that the new jackknife method resulted in better recovery of the correct individual parameter values relative to estimates based on only the data from the individual. Finally, the 6P model was used to examine the data from two previously reported studies with clinical populations. One application addressed the effect of alcohol-induced amnesia, and the other application dealt with Korsakoff amnesia. In both cases the pattern of storage and retrieval measurements resulted in a clarification of the underlying storage and retrieval differences between the clinical group and the control group.     

Memory storage and retrieval within and across modalities in children

Twenty-four kindergarten and fourth grade children were asked to locate a display card which had been visually or verbally presented. A probe, which identified the card to be located, was presented verbally and visually equally often. The children's ability to recall the location of an item did not differ as a function of the modality to which the material was presented. Nor was recall significantly affected when the presentation modality differed from the probe modality, suggesting that children as young as 5 can cross these sensory modalities to retrieve material with no loss in accuracy. Serial position curves suggest that the verbal and visual material is not stored in a common intersensory store. The primacy effect is found to be stronger with visually presented material and the recency effect strongest with auditorily presented material. Probe modality did not influence the serial position curves.     

On the measurement of storage and retrieval contributions to memory development

We report two free recall experiments and a cued recall experiment in which a new two-stage model was used to obtain numerical measurements of age changes in various aspects of storage and retrieval. The subjects in all three experiments were 7-year-olds (second graders) and 11-year-olds (sixth graders). The major findings in the free recall experiment were that getting a trace into storage posed less of a problem for elementary schoolers than learning how to get it out on test trials, that retrieval development is more rapid during the elementary school years than storage development, and that the superiority of older children's storage and retrieval abilities tends to become more pronounced as learning progresses. A similar pattern of results was obtained under different conditions in the cued recall experiment.     

Primary and secondary prevention programs for dating violence: A review of the literature

Recent research has consistently demonstrated that a significant proportion of dating relationships are characterized by violent interactions. Aggression that occurs in the context of dating relationships is associated with a variety of deleterious effects in the context of the current relationship, and provides a potential trajectory to more severe forms of violence in later relationships. These data have led researchers and practitioners to develop and implement programs designed to prevent such violent dating behaviors. This comprehensive review examines the literature on primary and secondary prevention programs for dating violence, with emphases on methodological and theoretical issues. Ubiquitous limitations of the current research are identified, as well as future directions and implications for researchers and practitioners in the field.     

Pupillary changes during encoding, storage, and retrieval of information.

6 subjects were each auditorily presented six lists of 7-digit numbers for retention intervals of 0, 5, and 10 sec. Pupil size was recorded during stimulus presentation, retention, interval, and recall of items. Results indicated that pupil dilation occurred during encoding and retrieval of stimulus items. Pupillary constriction was found during the retention interval when rehearsal was presumed to occur.     

Extraversion, arousal, and speed of retrieval from secondary storage.

Fifty-two subjects were assigned to one of four groups on the basis of scores on the Extraversion scale of the Eysenck Personality Inventory and on the General Activation scale of the Activation-Deactivation Adjective Check List. The subjects learned two lists composed of categorically related groups of words, with the number of categories and the number of words per category varied. Memory was probed by simultaneously presenting the subject with a category name and an item-position cue, and recording the recall latency. The major finding was that activation and extraversion interactively determined the recall latency for both category and item recall. The results were considered in light of arousal theory.     

Cognitive psychometrics: assessing storage and retrieval deficits in special populations with multinomial processing tree models

This article demonstrates how multinomial processing tree models can be used as assessment tools to measure cognitive deficits in clinical populations. This is illustrated with a model developed by W. H. Batchelder and D. M. Riefer (1980) that separately measures storage and retrieval processes in memory. The validity of the model is tested in 2 experiments, which show that presentation rate affects the storage of items (Experiment 1) and part-list cuing hurts item retrieval (Experiment 2). Experiments 3 and 4 examine 2 clinical populations: schizophrenics and alcoholics with organic brain damage. The model reveals that each group exhibits deficits in storage and retrieval, with the retrieval deficits being stronger and occurring more consistently over trials. Also, the alcoholics with organic brain damage show no improvement in retrieval over trials, although their storage improves at the same rate as a control group.     

Effects of alcohol on the storage and retrieval processes of heavy social drinkers

Two experiments investigated the effects of intoxication, expectation of intoxication, and state dependency on learning and relearning in male heavy social drinkers. In both studies, subjects participated in two daily sessions. On Day 1, intoxicated and sober subjects were presented with word lists for immediate free recall, followed by total free recall of all words. On Day 2, with or without a change in drug state, subjects were given a second total recall test, the same lists for immediate recall, and a third total recall test. In Experiment 1, 10 subjects served in each of four groups formed by crossing expectation with reception of alcohol on Day 1; all subjects were sober on Day 2. In Experiment 2, 12 subjects served in each of four groups formed by crossing drug state on Day 1 with drug state on Day 2 (sober-sober, sober-intoxicated, intoxicated-intoxicated, intoxicated-sober), and all expected alcohol. In both studies, intoxication produced a performance deficit, but retention loss on Day 2 was the same for change- and constant-state subjects. Expectation had no effect on performance. Results are discussed in terms of an alcohol-induced storage deficiency rather than a retrieval deficit.