Prospective Memory and Positivity Bias in the COVID-19 Health Crisis: The Effects of Aging.

This study aimed to determine whether the observed tendency to remember more positive than negative past events (positivity phenomena) also appears when recalling hypothetical events about the future. In this study, young, middle-aged, and older adults were presented with 28 statements about the future associated with the COVID-19 pandemic, half positive and half negative. In addition, half of these statements were endowed with personal implications while the other half had a more social connotations. Participants rated their agreement/disagreement with each statement and, after a distraction task, they recalled as many statements as possible. There was no difference in the agreement ratings between the three age groups, but the participants agreed with positive statements more than with negative ones and they identified more with statements of social content than of personal content. The younger and older individuals recalled more statements than the middle-aged people. More importantly, older participants recalled more positive than negative statements (positivity effect), and showed a greater tendency to turn negative statements into more positive or neutral ones (positivity bias). These findings showed that the positivity effect occurs in even such complex and situations as the present pandemic, especially in older adults. The results are discussed by reference to the notion of commission errors and false memories resulting from the activation of cognitive biases.

Memory of Medical Scenarios for End-of-Life Support Preferences.

We studied memory of health scenarios for end-of-life support decisions and stability of life support preferences. Psychology students (n = 36, age M = 27.25, SD = 6.21, 64% females) were administered the Life Support Preferences Questionnaire to assess their memory of six medical scenarios with different prognoses, care treatment, and end-of-life support choices. Recall, recognition, confidence and decision stability were assessed immediately and one month later. Correct recall decreased and incorrect recall increased from immediate to long-term recall, F(2, 68) = 74.38, p < .001, η2p = .69. In recall, participants spontaneously gave false information consistent with prior knowledge of illnesses and medical scenarios. Participants who had suffered a disease or serious accident did worse on correct recall, F(1, 34) = 6.59, p = .015, η2p = .16, and had more errors, F(1, 34) = 4.68, p = .038, η2p = .12, than participants who had not. In the recognition test there were no differences between hits and false alarms, showing the difficulty in discriminating between true and false contents. Confidence was greater for hits than for false alarms, F(1, 34) = 10.86, p = .002, η2p = .24, but this subjective measure did not seem to be a good predictor of accuracy because confidence was greater than the mean value for hits (p = .001, d = 1.74) and for false alarms (p = .001, d = 0.96). Long-term memory was quite poor and biased, but life support preferences did not change much.

Different bias mechanisms in recall and recognition of conceptual and perceptual information of an event / Diferentes mecanismos de los sesgos en el recuerdo y reconocimiento de información conceptual y perceptual de un evento

The aim of this research was to study the memory and response bias for conceptual and perceptual information in the recall and recognition of an event. The participants watched a movie trailer video and their memory of verbal and visual actions and details was evaluated using specific recall questions or a true/false recognition task. The participants recalled and recognized actions better than details, and visual information better than verbal information. Memory biases affected recall and recognition differently. The participants showed a high tendency to accept false verbal actions consistent with the gist of the event as true in the recognition task, while in the recall task the participants were more likely to answer incorrectly questions involving visual perceptual details. These results reflect the different mechanisms which are involved in the processing and cognitive management of conceptual and perceptual information of an event

El objetivo de esta investigación fue estudiar la memoria y sesgos de respuesta para información conceptual y perceptual en el recuerdo y reconocimiento de un evento. Los participantes vieron el video del tráiler de una película y se evaluó su memoria de las acciones y detalles, verbales y visuales, usando preguntas específicas en una tarea de recuerdo y frases con los mismos contenidos en una tarea de reconocimiento verdadero/falso. Los participantes recordaron y reconocieron mejor las acciones que los detalles y la información visual que la información verbal. Los sesgos de memoria afectaron de manera diferente al recuerdo y reconocimiento. Los participantes mostraron mayor tendencia a aceptar las acciones verbales falsas consistentes con la esencia del evento como verdaderas en la tarea de reconocimiento, mientras que en la tarea de recuerdo los participantes fueron más propensos a responder incorrectamente preguntas que implicaban detalles visuales. Estos resultados reflejan mecanismos diferentes implicados en el procesamiento y gestión cognitiva de la información conceptual y perceptual de un evento

Memory of medical scenarios for end-of-life support preferences

We studied memory of health scenarios for end-of-life support decisions and stability of life support preferences. Psychology students (n = 36, age M = 27.25, SD = 6.21, 64% females) were administered the Life Support Preferences Questionnaire to assess their memory of six medical scenarios with different prognoses, care treatment, and end-of-life support choices. Recall, recognition, confidence and decision stability were assessed immediately and one month later. Correct recall decreased and incorrect recall increased from immediate to long-term recall, F(2, 68) = 74.38, p < .001, η2p = .69. In recall, participants spontaneously gave false information consistent with prior knowledge of illnesses and medical scenarios. Participants who had suffered a disease or serious accident did worse on correct recall, F(1, 34) = 6.59, p = .015, η2p = .16, and had more errors, F(1, 34) = 4.68, p = .038, η2p = .12, than participants who had not. In the recognition test there were no differences between hits and false alarms, showing the difficulty in discriminating between true and false contents. Confidence was greater for hits than for false alarms, F(1, 34) = 10.86, p = .002, η2p = .24, but this subjective measure did not seem to be a good predictor of accuracy because confidence was greater than the mean value for hits (p = .001, d = 1.74) and for false alarms (p = .001, d = 0.96). Long-term memory was quite poor and biased, but life support preferences did not change much

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Age-Based Positivity Effects in Imagining and Recalling Future Positive and Negative Autobiographical Events.

Thoughts about the future reflect personal goals, and projections into the future enrich our emotional life. Researchers have taken an interest in determining whether the tendency to remember more positive than negative emotional events observed when recalling past events also appears when remembering imagined future events. The objective of this study was to examine the age-based positivity effect of recall for future positive and negative autobiographical events in young and older adults. Representative future events were first established to develop the cues used to prompt personal future events. In the production task, the participants were presented with eight positive and eight negative random future events of young or older adults as a model and the corresponding cues to generate their own positive and negative future autobiographical events. In the recall task, the participants recovered as many experiences as they could of the model and the positive and negative events produced by themselves. The participants correctly recalled more positive than negative events and committed more errors for negative than positive events, showing a clear tendency in both young and older adults to recall future imagined events as positive. Regarding age, the young adults recalled more events than the older participants whilst the older participants in particular showed better recall of their own imagined future events than the model's events, and committed more errors when recalling the model's events than their own imagined events. Regarding the positivity effect in incorrect recall, more than half of the errors were valence changes, most of these being from negative to positive events, and these valence changes were more pronounced in the older than in the younger adults. In general, there were fewer differences between young and older adults in the recall of positive events in comparison with negative events. Our findings suggest that people are well disposed toward recalling positive imagined future events and preserve a positive emotional state, suppressing negative memories.

Retrieval of past and future positive and negative autobiographical experiences.

We studied retrieval-induced forgetting for past or future autobiographical experiences. In the study phase, participants were given cues to remember past autobiographical experiences or to think about experiences that may occur in the future. In both conditions, half of the experiences were positive and half negative. In the retrieval-practice phase, for past and future experiences, participants retrieved either half of the positive or negative experiences using cued recall, or capitals of the world (control groups). Retrieval practice produced recall facilitation and enhanced memory for the practised positive and negative past and future experiences. While retrieval practice on positive experiences did not impair the recall of other positive experiences, we found inhibition for negative past and future experiences when participants practised negative experiences. Furthermore, retrieval practice on positive future experiences inhibited negative future experiences. These positivity biases for autobiographical memory may have practical implications for treatment of emotional disorders.

Differential retrieval of past and future autobiographical experiences.

Selective retrieval can both impair and enhance memory. In this study we analysed the effects of retrieval practice in the recall of past and future experiences. The participants generated past autobiographical experiences or imagined future experiences using recall cues of typical autobiographical experiences obtained in a previous study. The experiences were presented either in chronological or random order. Regardless of presentation order, retrieval practice produced facilitation in the free recall of practised past and future experiences. No retrieval-induced forgetting was observed for past experiences in the ordered presentation, showing that the temporal organisation of autobiographical experiences prevents the activation of inhibitory processes. Conversely, inhibition was significant in the free recall of future experiences presented in chronological order, possibly because future experiences present less welldefined temporal organisation, impairing the integration that suppresses inhibitory processes. Thus, retrieval-induced forgetting was evident in the random presentation of past and future autobiographical experiences.

Conceptual and perceptual encoding instructions differently affect event recall.

When recalling an event, people usually retrieve the main facts and a reduced proportion of specific details. The objective of this experiment was to study the effects of conceptually and perceptually driven encoding in the recall of conceptual and perceptual information of an event. The materials selected for the experiment were two movie trailers. To enhance the encoding instructions, after watching the first trailer participants answered conceptual or perceptual questions about the event, while a control group answered general knowledge questions. After watching the second trailer, all of the participants completed a closed-ended recall task consisting of conceptual and perceptual items. Conceptual information was better recalled than perceptual details and participants made more perceptual than conceptual commission errors. Conceptually driven processing enhanced the recall of conceptual information, while perceptually driven processing not only did not improve the recall of descriptive details, but also damaged the standard conceptual/perceptual recall relationship.

¿Quién hizo qué? Diferencias entre adultos jóvenes y mayores en la memoria para un atraco / Who did what? Differences between younger and older adults in memory for a robbery

La probabilidad de que una persona mayor tenga que declarar como testigo o víctima de un atraco o un suceso similar aumenta en función de la esperanza de vida de la población. Por ello, resulta relevante conocer si las personas mayores producen testimonios menos exactos que los jóvenes, así como determinar cuáles son las circunstancias en las que pueden ser más proclives a cometer errores. En este estudio utilizamos una prueba de reconocimiento para analizar la memoria para las acciones de un atraco en adultos jóvenes y mayores. Aunque no hubo diferencias en los aciertos, las personas mayores cometieron una proporción superior de falsas alarmas y resultaron menos exactas que los jóvenes en el reconocimiento de las acciones del suceso. Además, las personas mayores tuvieron más dificultades que los jóvenes a la hora determinar el autor de las acciones correctamente reconocidas como pertenecientes al atraco. Por lo tanto, los déficits de las personas mayores en el control del origen de la información que recuerdan podrían ayudar a explicar la menor exactitud de su memoria para el suceso, un hallazgo especialmente relevante al tomar declaración a una persona de edad avanzada

Due to the increased life expectancy of the older population, there is a growing probability for an elderly person to testify as an eyewitness or a victim of a robbery or a similar crime. However, little is known about aging effects on testimony accuracy and about circumstances in which older adults would be more prone to memory errors than younger adults. In this study older and younger adults' memory for actions of a robbery was examined with a recognition test. Although no differences were found in hits, the older adults had a higher proportion of false alarms and showed less accurate recognition than younger adults. In addition, the older adults were less able to attribute actions that occurred during the robbery to their correct sources. Thus, source-memory deficits may contribute to explain older adults’ less accurate recognition, a finding that should be taken into account in real-life eyewitness situations where an elderly person is involved

The role of exemplar typicality and encoding strategies in category retrieval-induced forgetting.

Selective retrieval practice of category exemplars often impairs the recall of related items, a phenomenon known as retrieval-induced forgetting (RIF). In Experiment 1 the role of item typicality (high, low) and presentation format of category exemplars (random, grouped) were analysed, while in Experiment 2 two encoding strategies (inter and intracategory) to modulate RIF were tested. Exemplar typicality was the critical factor underlying RIF. Competition during retrieval practice rendered RIF in the typical exemplars, but RIF did not appear when the exemplars were low typicality. The greater impairment of strong exemplars is in line with the inhibitory account of RIF and the notion of interference dependence. Inhibition appeared with random and grouped presentations suggesting that presentation format of the exemplars is not a critical factor in modulating RIF in a category-cued recall task. Distinctive processing instructions using sentences that connected items from different categories (intercategory strategy) and integration instructions by using size to organise the exemplars within categories (intracategory strategy) easily avoided competition and the need of inhibition processes in recall.

The influence of thematic congruency, typicality and divided attention on memory for radio advertisements.

We examined the effects of the thematic congruence between ads and the programme in which they are embedded. We also studied the typicality of the to-be-remembered information (high- and low-typicality elements), and the effect of divided attention in the memory for radio ad contents. Participants listened to four radio programmes with thematically congruent and incongruent ads embedded, and completed a true/false recognition test indicating the level of confidence in their answer. Half of the sample performed an additional task (divided attention group) while listening to the radio excerpts. In general, recognition memory was better for incongruent ads and low-typicality statements. Confidence in hits was higher in the undivided attention group, although there were no differences in performance. Our results suggest that the widespread idea of embedding ads into thematic-congruent programmes negatively affects memory for ads. In addition, low-typicality features that are usually highlighted by advertisers were better remembered than typical contents. Finally, metamemory evaluations were influenced by the inference that memory should be worse if we do several things at the same time.

Memory for radio advertisements: the effect of program and typicality.

We examined the influence of the type of radio program on the memory for radio advertisements. We also investigated the role in memory of the typicality (high or low) of the elements of the products advertised. Participants listened to three types of programs (interesting, boring, enjoyable) with two advertisements embedded in each. After completing a filler task, the participants performed a true/false recognition test. Hits and false alarm rates were higher for the interesting and enjoyable programs than for the boring one. There were also more hits and false alarms for the high-typicality elements. The response criterion for the advertisements embedded in the boring program was stricter than for the advertisements in other types of programs. We conclude that the type of program in which an advertisement is inserted and the nature of the elements of the advertisement affect both the number of hits and false alarms and the response criterion, but not the accuracy of the memory.

Script-driven processing affords protection from retrieval-induced forgetting in the recall of everyday activities.

Using the retrieval-practice paradigm, we examined the effects of script and selective retrieval on the recall of high- and low-typicality actions of everyday activities. The participants studied two activities, Getting up in the morning and Going to a restaurant, each consisting of high-typicality and low-typicality actions. They then practised half of the high- or low-typicality actions of an activity, with recall of the unpractised activity serving as baseline. Script-driven processing prompted the recall of high-typicality actions and produced more high-typicality than low-typicality intrusions. Selective retrieval practice of the high-typicality script actions did not have an adverse effect on the recall of high- or low-typicality actions, while practising low-typicality actions not representative of the scripts produced retrieval-induced forgetting of other low-typicality actions. Scripts provide the cognitive system with flexibility and economy, but side-effects such as high-typicality intrusions and poor memory for detail can also derive from script processing.

Memory for Radio Advertisements: the effect of program and typicality

We examined the influence of the type of radio program on the memory for radio advertisements. We also investigated the role in memory of the typicality (high or low) of the elements of the products advertised. Participants listened to three types of programs (interesting, boring, enjoyable) with two advertisements embedded in each. After completing a filler task, the participants performed a true/false recognition test. Hits and false alarm rates were higher for the interesting and enjoyable programs than for the boring one. There were also more hits and false alarms for the high-typicality elements. The response criterion for the advertisements embedded in the boring program was stricter than for the advertisements in other types of programs. We conclude that the type of program in which an advertisement is inserted and the nature of the elements of the advertisement affect both the number of hits and false alarms and the response criterion, but not the accuracy of the memory (AU)

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An integrative study of autobiographical memory for positive and negative experiences

In this study we examined autobiographical memory for emotional experiences from an integrative perspective, analyzing nature, distribution, content and phenomenological assessment of the experiences. Undergraduate students produced positive or negative life experiences, dated them and indicated their emotional level. Afterwards, they chose an experience to narrate, and rated their memory for the experience. The positive and negative experiences were grouped into 14 categories, although most of them fell into four areas: studies, family, friends and couple. The number of positive and negative experiences progressively increased from very few childhood memories to a larger percentage of more recent events. The distribution was equivalent, except during adolescence, in which a greater number of negative than positive experiences were recorded. The negative narratives included more emotional details, references to cognitive processes, mental rehearsal and justifications than the positive narratives. But the positive experiences obtained higher ratings in vividness and sensorial details than the negative experiences (AU)

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The power of script knowledge and selective retrieval in the recall of daily activities.

In this study we examined the effects of script knowledge and selective retrieval on the recall of daily activities. The participants studied daily activities typically performed over the course of a normal day from morning to bedtime, presented in chronological order or as a random list. Then half of the participants practiced retrieval for part of the activities. The use of the script improved recall in the ordered presentation. The facilitation effect caused by retrieval practice was greater in the random presentation, showing that retrieval is a powerful mnemonic enhancer, especially for nonorganized materials. Script-driven processing in the ordered presentation prevented inhibitory effects derived from selective retrieval practice, whereas retrieval-induced forgetting was observed in the random presentation, which lacked the temporal and causal structure of the script. The results show the power of the script to moderate inhibition and the effectiveness of retrieval practice in the recall of daily activities.

False recognition and source attribution for actions of an emotional event in older and younger adults.

In two experiments recognition of actions of a robbery presented in a video was examined in older and younger adults. In both experiments older adults had more false alarms and showed less accurate recognition than younger adults. In addition, when participants were asked in Experiment 1 to indicate Remember/Know/Guess judgments for actions they considered true, older adults accepted more false actions with Remember judgments. And when participants were asked in Experiment 2 to attribute the source (i.e., perpetrator), the older adults were less able to attribute actions that occurred during the robbery to their correct sources. Furthermore, we found a robust positive correlation between source attribution ability and recognition accuracy. Thus, source-memory deficits may contribute to older adults' false memories in real-life eyewitness situations.

Memory for actions of an event: older and younger adults compared.

Previous studies have shown increased false memory effects in older compared to younger adults. To investigate this phenomenon in event memory, in the present study, the authors presented younger and older adults with a robbery. A distinction was made between verbal and visual actions of the event, and recognition and subjective experience of retrieval (remember/know/guess judgments) were analyzed. Although there were no differences in hits, older adults accepted more false information as true and, consequently, showed less accurate recognition than younger adults. Moreover, older adults were more likely than younger adults to accompany these errors with remember judgments. Young adults accepted fewer false verbal actions than visual ones and awarded fewer remember judgments to their false alarms for verbal than for visual actions. Older adults, however, did not show this effect of type of information. These results suggest that aging is a relevant factor in memory for real-life eyewitness situations.

Acceptance and confidence of central and peripheral misinformation.

We examined the memory for central and peripheral information concerning a crime and the acceptance of false information. We also studied eyewitnesses' confidence in their memory. Participants were shown a video depicting a bank robbery and a questionnaire was used to introduce false central and peripheral information. The next day the participants completed a recognition task in which they rated the confidence of their responses. Performance was better for central information and participants registered more false alarms for peripheral contents. The cognitive system's limited attentional capacity and the greater information capacity of central elements may facilitate processing the more important information. The presentation of misinformation seriously impaired eyewitness memory by prompting a more lenient response criterion. Participants were more confident with central than with peripheral information. Eyewitness memory is easily distorted in peripheral aspects but it is more difficult to make mistakes with central information. However, when false information is introduced, errors in central information can be accompanied by high confidence, thus rendering them credible and legally serious.

Acceptance and Confidence of Central and Peripheral Misinformation

We examined the memory for central and peripheral information concerning a crime and the acceptance of false information. We also studied eyewitnesses’ confidence in their memory. Participants were shown a video depicting a bank robbery and a questionnaire was used to introduce false central and peripheral information. The next day the participants completed a recognition task in which they rated the confidence of their responses. Performance was better for central information and participants registered more false alarms for peripheral contents. The cognitive system’s limited attentional capacity and the greater information capacity of central elements may facilitate processing the more important information. The presentation of misinformation seriously impaired eyewitness memory by prompting amore lenient response criterion. Participants were more confident with central than with peripheral information. Eyewitness memory is easily distorted in peripheral aspects but it is more difficult to make mistakes with central information. However, when false information is introduced, errors in central information can be accompanied by high confidence, thus rendering them credible and legally serious (AU)

Estudiamos la aceptación de información falsa y la memoria de contenidos centrales y periféricos sobre un crimen. Además, también nos interesamos por la confianza que los testigos tienen en su memoria. Los participantes vieron un vídeo sobre un robo a un banco, inmediatamente después completaron un cuestionario con preguntas en las que se introdujo información falsa sobre contenidos centrales y periféricos y, un día después, completaron una prueba de reconocimiento en la que también indicaron su confianza en la respuesta. El rendimiento fue mejor con contenidos centrales y hubo más falsas alarmas con periféricos. Este resultado puede explicarse a partir de la limitada capacidad atencional del sistema cognitivo y de la mayor capacidad informativa de los contenidos centrales, que puede promover su procesamiento preferencial. La presentación de información falsa empeoró el testimonio al provocar un criterio de respuesta más laxo y la confianza fue mayor ante contenidos centrales que periféricos. Se concluye que es fácil alterar la memoria de un testigo sobre aspectos periféricos, pero es más difícil con aspectos centrales. Sin embargo, cuando se presenta información falsa, los errores con información central pueden evaluarse con confianza alta, lo que los haría potencialmente creíbles y peligrosos en el sistema judicial (AU)