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1.
J Alzheimers Dis ; 97(3): 1365-1379, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38250778

RESUMEN

BACKGROUND: Existing measures of scam susceptibility lack ecological validity and situational variability. Evidence suggests that all adults may be susceptible to scams, though a comprehensive fraud victimization theory remains to be explored. OBJECTIVE: To identify cognitive and sociodemographic variables that differentiate individuals with high scam susceptibility from those less susceptible. This article describes the development and feasibility of the Assessment of Situational Judgment questionnaire (ASJ), a brief tool designed to detect scam susceptibility. METHODS: The 17-item ASJ was developed using a combination of existing scams reported by the Florida Division of Consumer Services and legitimate scenarios. Participants were presented with scam and legitimate scenarios and queried regarding their willingness to engage. Response options were offered with instructions on a 7-point Likert scale (extremely unlikely to extremely likely). Pilot data from a development sample provided the foundation for the final version of the ASJ. RESULTS: The final version of the ASJ was administered to 183 online participants. The Scam factor (8 items) explained 50.6% of the variance. The Legit factor (9 items) reported on a 7-point Likert scale explaining 10.6% of the variance. A Scam to Legit ratio provides a proxy for overall scam susceptibility. Cut-off scores of 24 on the Scam factor, 47 on the Legit factor, and 0.62 on the ratio optimize measures of scam susceptibility. CONCLUSIONS: The ASJ is a brief, ecologically valid measure of scam susceptibility. There is a need for a sensitive and specific tool to detect scam susceptibility in clinical, community, and financial settings.


Asunto(s)
Víctimas de Crimen , Juicio , Humanos , Fraude , Encuestas y Cuestionarios , Susceptibilidad a Enfermedades , Víctimas de Crimen/psicología
2.
Behav Res Methods ; 53(3): 1342-1352, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33078362

RESUMEN

Phishing emails constitute a major problem, linked to fraud and exploitation as well as subsequent negative health outcomes including depression and suicide. Because of their sheer volume, and because phishing emails are designed to deceive, purely technological solutions can only go so far, leaving human judgment as the last line of defense. However, because it is difficult to phish people in the lab, little is known about the cognitive and neural mechanisms underlying phishing susceptibility. There is therefore a critical need to develop an ecologically valid lab-based measure of phishing susceptibility that will allow evaluation of the cognitive mechanisms involved in phishing detection. Here we present such a measure based on a task, the Phishing Email Suspicion Test (PEST), and a cognitive model to quantify behavior. In PEST, participants rate a series of phishing and non-phishing emails according to their level of suspicion. By comparing suspicion scores for each email to its real-world efficacy, we find initial support for the ecological validity of PEST - phishing emails that were more effective in the real world were more effective at deceiving people in the lab. In the proposed computational model, we quantify behavior in terms of participants' overall level of suspicion of emails, their ability to distinguish phishing from non-phishing emails, and the extent to which emails from the recent past bias their current decision. Together, our task and model provide a framework for studying the cognitive neuroscience of phishing detection.


Asunto(s)
Seguridad Computacional , Correo Electrónico , Afecto , Cognición , Humanos , Juicio
3.
J Gerontol B Psychol Sci Soc Sci ; 76(9): 1711-1715, 2021 10 30.
Artículo en Inglés | MEDLINE | ID: mdl-33378418

RESUMEN

OBJECTIVES: As our social worlds become increasingly digitally connected, so too has concern about older adults falling victim to "phishing" emails, which attempt to deceive a person into identity theft and fraud. In the present study, we investigated whether older age is associated with differences in perceived suspiciousness of phishing emails. METHODS: Sixty-five cognitively normal middle-aged to older adults rated a series of genuine and phishing emails on a scale from definitely safe to definitely suspicious. RESULTS: Although older age was not related to a shift in overall perception of email safety, older age was related to worse discrimination between genuine and phishing emails, according to perceived suspiciousness. DISCUSSION: These findings suggest that cognitively normal older adults may be at particular risk for online fraud because of an age-associated reduction in their sensitivity to the credibility of emails.


Asunto(s)
Envejecimiento/fisiología , Decepción , Correo Electrónico , Juicio/fisiología , Percepción Social , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad
4.
Arch Clin Neuropsychol ; 32(7): 769-785, 2017 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-29077803

RESUMEN

The clinical definition of Parkinson's disease (PD) is based on cardinal motor features including bradykinesia as well as an additional symptom of tremor, postural instability, or rigidity. Evidence from neuropathological, imaging, and clinical research suggests a premotor, early phase of PD pathology. Further understanding of the earliest biomarkers of PD is crucial for the development of neuroprotective, disease modifying, cognitive, and psychiatric interventions. Recent research has explored early non-motor markers of PD pathology. This issue is especially timely as the International Parkinson and Movement Disorder Society has recently provided a research definition for prodromal PD which includes combinations of prodromal markers and risk factors aimed at identifying target populations for disease-prevention trials. In this review of early PD, we will outline early non-motor symptoms, early cognitive and neuropsychiatric features, neuropsychological assessment strategies, emerging evidence for early biomarkers, and treatment recommendations.


Asunto(s)
Disfunción Cognitiva/etiología , Enfermedad de Parkinson/psicología , Disfunción Cognitiva/diagnóstico , Disfunción Cognitiva/psicología , Humanos , Pruebas Neuropsicológicas , Enfermedad de Parkinson/diagnóstico
5.
J Cogn Neurosci ; 25(6): 852-61, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23410034

RESUMEN

To support reward-based decision-making, the brain must encode potential outcomes both in terms of their incentive value and their probability of occurrence. Recent research has made it clear that the brain bears multiple representations of reward magnitude, meaning that a single choice option may be represented differently-and even inconsistently-in different brain areas. There are some hints that the same may be true for reward probability. Preliminary evidence hints that, even as systematic distortions of probability are expressed in behavior, these may not always be uniformly reflected at the neural level: Some neural representations of probability may be immune from such distortions. This study provides new evidence consistent with this possibility. Participants in a behavioral experiment displayed a classic "illusion of control," providing higher estimates of reward probability for gambles they had chosen than for identical gambles that were imposed on them. However, an fMRI study of the same task revealed that neural prediction error signals, arising when gamble outcomes were revealed, were unaffected by the illusion of control. The resulting behavioral-neural dissociation reinforces the case for multiple, inconsistent internal representations of reward probability, while also prompting a reinterpretation of the illusion of control effect itself.


Asunto(s)
Encéfalo/fisiología , Toma de Decisiones/fisiología , Imagen por Resonancia Magnética/métodos , Probabilidad , Recompensa , Adolescente , Adulto , Mapeo Encefálico , Femenino , Humanos , Ilusiones/psicología , Imagen por Resonancia Magnética/instrumentación , Masculino , Adulto Joven
6.
Curr Biol ; 20(8): R362-4, 2010 Apr 27.
Artículo en Inglés | MEDLINE | ID: mdl-21749957

RESUMEN

Recent experiments in both humans and mice suggest that working memory training improves general cognitive ability. While the prospect of enhancing human and animal intelligence is enticing, several questions remain.


Asunto(s)
Conducta Animal/fisiología , Cognición/fisiología , Aprendizaje por Laberinto/fisiología , Memoria a Corto Plazo/fisiología , Animales , Humanos
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