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1.
Mem Cognit ; 2024 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-38381314

RESUMO

Intention offloading refers to the use of external reminders to help remember delayed intentions (e.g., setting an alert to help you remember when you need to take your medication). Research has found that metacognitive processes influence offloading such that individual differences in confidence predict individual differences in offloading regardless of objective cognitive ability. The current study investigated the cross-domain organization of this relationship. Participants performed two perceptual discrimination tasks where objective accuracy was equalized using a staircase procedure. In a memory task, two measures of intention offloading were collected, (1) the overall likelihood of setting reminders, and (2) the bias in reminder-setting compared to the optimal strategy. It was found that perceptual confidence was associated with the first measure but not the second. It is shown that this is because individual differences in perceptual confidence capture meaningful differences in objective ability despite the staircase procedure. These findings indicate that intention offloading is influenced by both domain-general and task-specific metacognitive signals. They also show that even when task performance is equalized via staircasing, individual differences in confidence cannot be considered a pure measure of metacognitive bias.

2.
Psychon Bull Rev ; 30(1): 60-76, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35789477

RESUMO

How do we remember delayed intentions? Three decades of research into prospective memory have provided insight into the cognitive and neural mechanisms involved in this form of memory. However, we depend on more than just our brains to remember intentions. We also use external props and tools such as calendars and diaries, strategically placed objects, and technologies such as smartphone alerts. This is known as 'intention offloading'. Despite the progress in our understanding of brain-based prospective memory, we know much less about the role of intention offloading in individuals' ability to fulfil delayed intentions. Here, we review recent research into intention offloading, with a particular focus on how individuals decide between storing intentions in internal memory versus external reminders. We also review studies investigating how intention offloading changes across the lifespan and how it relates to underlying brain mechanisms. We conclude that intention offloading is highly effective, experimentally tractable, and guided by metacognitive processes. Individuals have systematic biases in their offloading strategies that are stable over time. Evidence also suggests that individual differences and developmental changes in offloading strategies are driven at least in part by metacognitive processes. Therefore, metacognitive interventions could play an important role in promoting individuals' adaptive use of cognitive tools.


Assuntos
Memória Episódica , Metacognição , Serviços Terceirizados , Humanos , Intenção , Encéfalo , Rememoração Mental
3.
Ann Med Surg (Lond) ; 81: 104481, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36147093

RESUMO

Introduction: and importance: Fetus papyraceous (FP) is a rare condition that describes a mummified fetus in a multiple gestation pregnancy in which one fetus dies and becomes flattened between the membranes of the other fetus and uterine wall. Compound presentation occurs when the fetus's arm or leg is next to the main presenting part, very often the vertex is combined with arm presentation. A severe complication can occur in mother and child in such cases. Case presentation: We report a case of incidental finding of fetus papyraceous disguised as a compound presentation during normal delivery which was managed successfully without any complication. Discussion: Regular antenatal chorionicity assessment is essential for early diagnosis of fetus papyraceous and reduces mortality and morbidity in the surviving fetus. Conclusion: Early identification of such cases is necessary as it is associated with severe complications like preterm labor, infection from a retained fetus, severe puerperal hemorrhage, consumptive coagulopathy like disseminated intravascular coagulation, and obstruction by a low-lying fetus papyraceus producing dystocia leading to cesarean birth.

4.
Conscious Cogn ; 85: 103024, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-33032027

RESUMO

People often use external reminders to help remember delayed intentions. This is a form of "cognitive offloading". Individuals sometimes offload more often than would be optimal (Gilbert et al., 2020). This bias has been linked to participants' erroneous metacognitive underconfidence in their memory abilities. However, underconfidence is unlikely to fully explain the bias. An additional, previously-untested factor that may contribute to the offloading bias is a preference to avoid cognitive effort associated with remembering internally. The present Registered Report examined evidence for this hypothesis. One group of participants received payment contingent on their performance of the task (hypothesised to increase cognitive effort, and therefore reduce the bias towards offloading); another group received a flat payment for taking part, as in the earlier experiment. The offloading bias was significantly reduced (but not eliminated) in the rewarded group, suggesting that a preference to avoid cognitive effort influences cognitive offloading.


Assuntos
Memória Episódica , Metacognição , Humanos , Intenção , Rememoração Mental , Recompensa
5.
J Exp Psychol Gen ; 149(3): 501-517, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31448938

RESUMO

Individuals frequently choose between accomplishing goals using unaided cognitive abilities or offloading cognitive demands onto external tools and resources. For example, in order to remember an upcoming appointment one might rely on unaided memory or create a reminder by setting a smartphone alert. Setting a reminder incurs both a cost (the time/effort to set it up) and a benefit (increased likelihood of remembering). Here we investigate whether individuals weigh such costs/benefits optimally or show systematic biases. In 3 experiments, participants performed a memory task where they could choose between (a) earning a maximum reward for each remembered item, using unaided memory; or (b) earning a lesser amount per item, using external reminders to increase the number remembered. Participants were significantly biased toward using external reminders, even when they had a financial incentive to choose optimally. Individual differences in this bias were stable over time, and predicted by participants' erroneous metacognitive underconfidence in their memory abilities. Bias was eliminated, however, when participants received metacognitive advice about which strategy was likely to maximize performance. Furthermore, we found that metacognitive interventions (manipulation of feedback valence and practice-trial difficulty) yielded shifts in participants' reminder bias that were mediated by shifts in confidence. However, the bias could not be fully attributed to metacognitive error. We conclude that individuals have stable biases toward using external versus internal cognitive resources, which result at least in part from inaccurate metacognitive evaluations. Finding interventions to mitigate these biases can improve individuals' adaptive use of cognitive tools. (PsycINFO Database Record (c) 2020 APA, all rights reserved).


Assuntos
Aptidão/fisiologia , Cognição/fisiologia , Memória Episódica , Metacognição/fisiologia , Adolescente , Adulto , Feminino , Humanos , Individualidade , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Adulto Jovem
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