We report the 1st example of a true complementarity effect in memory development-a situation in which memory for the same event simultaneously becomes more and less accurate between early childhood and adulthood. We investigated this paradoxical effect because fuzzy-trace theory predicts that it can occur in paradigms that produce developmental reversals in false memory, which are circumstances in which adults are more likely than children to remember new events as old. The complementarity prediction is this: If subjects separately judge whether those same events are new but similar to old ones, adults will be more accurate than children, even though adults are less accurate when they judge whether the items are old. We report 4 experiments in which children (6- and 10-year-olds), adolescents (14-year-olds), and adults encoded the modal developmental reversal materials: Deese-Roediger-McDermott lists. Then, they responded to memory tests on which half the subjects judged whether test items were old and half judged whether the same items were new-similar. The paradoxical complementarity effect was detected in all experiments: The tendency to falsely remember new-similar items as being old increased with development, but so did the tendency to correctly remember them as being new-similar. (PsycINFO Database Record

Overdistribution is a form of memory distortion in which an event is remembered as belonging to too many episodic states, states that are logically or empirically incompatible with each other. We investigated a response formatting method of suppressing 2 basic types of overdistribution, disjunction and conjunction illusions, which parallel some classic illusions in the judgment and decision making literature. In this method, subjects respond to memory probes by rating their confidence that test cues belong to specific episodic states (e.g., presented on List 1, presented on List 2), rather than by making the usual categorical judgments about those states. The central prediction, which was derived from the task calibration principle of fuzzy-trace theory, was that confidence ratings should reduce overdistribution by diminishing subjects' reliance on noncompensatory gist memories. The data of 3 experiments agreed with that prediction. In Experiment 1, there were reliable disjunction illusions with categorical judgments but not with confidence ratings. In Experiment 2, both response formats produced reliable disjunction illusions, but those for confidence ratings were much smaller than those for categorical judgments. In Experiment 3, there were reliable conjunction illusions with categorical judgments but not with confidence ratings. Apropos of recent controversies over confidence-accuracy correlations in memory, such correlations were positive for hits, negative for correct rejections, and the 2 types of correlations were of equal magnitude.

El objetivo principal de este estudio es examinar la efectividad de técnicas mnemónicas de la entrevista cognitiva como la reconstrucción del contexto, el reporte total, el cambio del orden y el cambio de perspectiva sobre determinado evento. Para éste trabajo se utilizó una muestra de 60 estudiantes universitarios de la licenciatura en Psicología de la UAS con un promedio de edad de 19.37 años. Se llevó a cabo una serie de 4 ANCOVAS, de acuerdo al tipo de entrevista, que incluían el número de detalles correctos, incorrectos y confabulados reportados como variables dependientes y duración de la entrevista como covariable. La combinación de técnicas mnemónicas de reporte total con cambio de orden conduce a un mayor número de detalles correctos reportados en la fase de recuerdo libre que otras combinaciones de técnicas mnemónicas.

Recent research on the overdistribution principle implies that episodic memory is infected by conjunction illusions. These are instances in which an item that was presented in a single context (e.g., List 1) is falsely remembered as having been presented in multiple contexts (e.g., List 1 and List 2). Robust conjunction illusions were detected in source-monitoring designs in which conjunctive probes ("Was bagpipe presented on List 1 and List 2?") were added to the traditional nonconjunctive probes ("Was bagpipe presented on List 1?"). In Experiment 1, the levels of those illusions were comparable to what would be expected on the basis of results from prior overdistribution experiments. In Experiments 2 and 3, conjunction illusions were neither eliminated nor reduced by a manipulation that should have had such effects if the illusions are by-products of subjective differences in retrieved memory support. Also, conjunction illusions sometimes rose to the level of conjunction fallacies: In certain conditions, subjects thought that items were more likely to have occurred in all the presentation contexts than in any single context, which is impossible. Two general approaches to explaining overdistribution, representational accounts and retrieval accounts, are considered.

Introduction: The Importance of Child Witnesses - Why Study Them? Are They Reliable? What do We Know of Infant and Childhood Memory Development? Theory and Processes in Memory Development: Infancy and Early Childhood P.Bauer Feats of Early Memory: Courtroom Tales of What Adults Claim to Remember About Early Childhood Events M.Howe Theory and Processes in Memory Development: Childhood to Adolescence J.Corbin, E.Wilhelms, V.Reyna and C.Brainerd Children as Eyewitnesses: Historical Background and Factors Affecting Children's Eyewitness Testimony T.Odegard and M.Toglia Children's Memory for Emotionally Negative Experiences: An Eyewitness Memory Perspective T.Marche and K.Salmon Investigative Interviews of Children D.Poole and J.Dickinson The Law and Science of Children's Testimonial Competence J.Klemfuss and S.Ceci Child Eyewitness Person Descriptions and Lineup Identifications J.Pozzulo The Psychology of the Missing: Missing and Abducted Children J.Lampinen, C.Peters, V.Gier and L.Sweeney Conclusions and Next Steps for Researchers and Practitioners M.Lawler, D.Bederian-Gardner and G. Goodman

SummaryThe identification performance of children (5 to 6 years, n = 180; 9 to 10 years, n = 180) and adults (n = 180) was examined using three types of video lineup procedures: simultaneous, sequential and elimination. Participants viewed a videotaped staged theft and then attempted to identify the culprit from a target‐present or target‐absent video lineup. Correct identifications in simultaneous and elimination video lineups did not differ as a function of age. The sequential video lineup was associated with a reduction in correct identifications for both child groups compared with adults. With respect to the target‐absent lineup condition, the video elimination lineup was associated with an increase in correct rejection rates for adult witnesses. Age was also significantly associated with accuracy. Differences in correct rejection rates were observed between adults and children and also between the two child groups. Implications and future directions are discussed. Copyright © 2011 John Wiley & Sons, Ltd.

Semantic false memories are confounded with a second type of error, overdistribution, in which items are attributed to contradictory episodic states. Overdistribution errors have proved to be more common than false memories when the 2 are disentangled. We investigated whether overdistribution is prevalent in another classic false memory paradigm: source monitoring. It is. Conventional false memory responses (source misattributions) were predominantly overdistribution errors, but unlike semantic false memory, overdistribution also accounted for more than half of true memory responses (correct source attributions). Experimental control of overdistribution was achieved via a series of manipulations that affected either recollection of contextual details or item memory (concreteness, frequency, list order, number of presentation contexts, and individual differences in verbatim memory). A theoretical model was used to analyze the data (conjoint process dissociation) that predicts that (a) overdistribution is directly proportional to item memory but inversely proportional to recollection and (b) item memory is not a necessary precondition for recollection of contextual details. The results were consistent with both predictions.

This chapter discusses fuzzy-trace theory's (FTT) approach to the development of recollection, the procedures and mathematical models that it uses to measure recollection, and the developmental findings that have accumulated to date from those techniques. It deals with the how of recollection, in the sense of measurement procedures, more than with the what, in the sense of process models of recollection. Although the distinctions that constitute FTT's process model of recollection and familiarity are discussed and figure throughout, the lion's share of the presentation deals with procedures for measuring those distinctions and to the findings that have accumulated. That emphasis grows out of the fact that until recently, the recollection/familiarity distinction has had no appreciable influence on the study of memory development.

We examined the effect of a prior Modified Cognitive Interview on young and older adults' recall of a short film of a staged crime and subsequent reporting of misinformation. Participants viewed the film followed the next day by misinformation presented in a postevent summary. They were then interviewed with either a Modified Cognitive Interview or a control interview followed by a recognition memory test. A Modified Cognitive Interview elicited more correct details and improved overall accuracy compared to a control interview in both age groups, although the young adults recollected three times more correct information in a Modified Cognitive Interview than the older adults. In both age groups, correct recollections of person and action details were higher in a Modified Cognitive Interview than a control interview. Importantly, older adults who were interviewed with a Modified Cognitive Interview were not susceptible to misinformation effects.

Do the emotional valence and arousal of events distort children's memories? Do valence and arousal modulate counterintuitive age increases in false memory? We investigated those questions in children, adolescents, and adults using the Cornell/Cortland Emotion Lists, a word list pool that induces false memories and in which valence and arousal can be manipulated factorially. False memories increased with age for unpresented semantic associates of word lists, and net accuracy (the ratio of true memory to total memory) decreased with age. These surprising developmental trends were more pronounced for negatively valenced materials than for positively valenced materials, they were more pronounced for high-arousal materials than for low-arousal materials, and developmental increases in the effects of arousal were small in comparison with developmental increases in the effects of valence. These findings have ramifications for legal applications of false memory research; materials that share the emotional hallmark of crimes (events that are negatively valenced and arousing) produced the largest age increases in false memory and the largest age declines in net accuracy.

A developmental reversal in false memory is the counterintuitive phenomenon of higher levels of false memory in older children, adolescents, and adults than in younger children. The ability of verbatim memory to suppress this age trend in false memory was evaluated using the Deese-Roediger-McDermott (DRM) paradigm. Seven and 11-year-old children studied DRM lists either in a standard condition (whole words) that normally produces high levels of false memory or in an alternative condition that should enhance verbatim memory (word fragments). Half the children took 1 recognition test, and the other half took 3 recognition tests. In the single-test condition, the typical age difference in false memory was found for the word condition (higher false memory for 11-year-olds than for 7-year-olds), but in the word fragment condition false memory was lower in the older children. In the word condition, false memory increased over successive recognition tests. Our findings are consistent with 2 principles of fuzzy-trace theory's explanation of false memories: (a) reliance on verbatim rather than gist memory causes such errors to decline with age, and (b) repeated testing increases reliance on gist memory in older children and adults who spontaneously connect meaning across events.

S. Ghetti (2008) and M. L. Howe (2008) presented probative ideas for future research that will deepen scientific understanding of developmental reversals on false memory and establish boundary conditions for these counterintuitive patterns. Ghetti extended the purview of current theoretical principles by formulating hypotheses about how developmental reversals are controlled by the growth of phantom recollection and by the growth of false-memory editing. Some data are available on her hypotheses about phantom recollection, which distinguish phenomenology (vague or vivid) from memory representation (verbatim or gist). Howe introduced alternative theoretical principles that can be traced to the early work of Deese and Underwood. He argued that fuzzy-trace theory is subject to 3 limitations and that his alternative conception makes 3 predictions that contrast with fuzzy-trace theory's predictions. In the current reply, it is shown that the stated limitations do not apply to fuzzy-trace theory, that previously published research runs counter to the 3 predictions, and that the core difference between the 2 approaches is that fuzzy-trace theory is an opponent-processes model whereas the alternative conception is a 1-process model.

Two studies examined whether a Cognitive Interview improves older witnesses' recall. Study I compared the quality and quantity of older adults' recall when given a typical UK police interview, the Enhanced Cognitive Interview (ECI), or a modified version of the Cognitive Interview (MCI). The MCI was identical to the ECI except that the change perspective technique was omitted. Old-old (7595-years) adults' recall was less complete and less accurate than that of young-old (60-74-years) adults, which was less complete and accurate than that of young (17-31-years) adults. The ECI and MCI increased the number of correct Person, Action, Object and Surrounding details reported across every age group, without increasing the number of incorrect or confabulated details recalled. In Study 2, it was found that these effects remained when interviews were re-scored using a system that reflected police officers' decisions about the investigative relevance of details. Copyright (c) 2006 John Wiley & Sons, Ltd.