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1.
Psychol Sci ; 34(10): 1146-1162, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37682597

RESUMO

Generalizing from past experiences to novel situations is critical for adaptive behavior, whereas overgeneralization can promote maladaptive responses (e.g., context-inappropriate fear in anxiety). Here, we propose that overgeneralizing alcohol-related associations characterizes risky drinking. We conducted two online experiments assessing generalization of alcohol-related gains (Study 1) and losses (Study 2) among individuals who engaged in light or risky patterns of drinking (Study 1: N = 88, 24-44 years old; Study 2: N = 87, 21-44 years old). After learning to associate cards with alcohol and non-alcohol-related outcomes, participants chose whether to play with cards varying in perceptual similarity to those shown during conditioning. Finally, participants completed a surprise recognition memory test for all outcomes. Although both groups showed comparable conditioning, we found that risky drinkers overgeneralized alcohol-related gains and losses. Risky drinkers also showed a bias toward recognizing alcohol-related images. These results indicate a novel role for overgeneralization of alcohol-related gains and losses as a mechanism associated with risky drinking.


Assuntos
Consumo de Bebidas Alcoólicas , Etanol , Humanos , Adulto Jovem , Adulto , Assunção de Riscos , Medo , Ansiedade
2.
Psychol Sci ; 32(11): 1811-1829, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34592110

RESUMO

Disinformation in politics, advertising, and mass communications has proliferated in recent years. Few counterargumentation strategies have proven effective at undermining a deceptive message over time. This article introduces the Poison Parasite Counter (PPC), a cognitive-science-based strategy for durably countering deceptive communications. The PPC involves inserting a strong (poisonous) counter-message, just once, into a close replica of a deceptive rival's original communication. In parasitic fashion, the original communication then "hosts" the counter-message, which is recalled on each reexposure to the original communication. The strategy harnesses associative memory to turn the original communication into a retrieval cue for a negating counter-message. Seven experiments (N = 3,679 adults) show that the PPC lastingly undermines a duplicitous rival's original communication, influencing judgments of communicator honesty and favorability as well as real political donations.


Assuntos
Parasitos , Venenos , Adulto , Animais , Comunicação , Sinais (Psicologia) , Humanos , Memória
3.
Psychol Sci ; 28(8): 1171-1179, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28700267

RESUMO

The age-related declines observed in scores on paired-associate-learning (PAL) tests are widely taken as support for the idea that human cognitive capacities decline across the life span. In a computational simulation, we showed that the patterns of change in PAL scores are actually predicted by the models that formalize the associative learning process in other areas of behavioral and neuroscientific research. These models also predict that manipulating language exposure can reproduce the experience-related performance differences erroneously attributed to age-related decline in age-matched adults. Consistent with this, results showed that older bilinguals outperformed native speakers in a German PAL test, an advantage that increased with age. These analyses and results show that age-related PAL performance changes reflect the predictable effects of learning on the associability of test items, and indicate that failing to control for these effects is distorting the understanding of cognitive and brain development in adulthood.


Assuntos
Aprendizagem por Associação/fisiologia , Envelhecimento Cognitivo/fisiologia , Multilinguismo , Adolescente , Adulto , Fatores Etários , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
4.
Psychol Sci ; 26(3): 325-34, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25694442

RESUMO

We showed that anticipatory cognitive control could be unconsciously instantiated through subliminal cues that predicted enhanced future control needs. In task-switching experiments, one of three subliminal cues preceded each trial. Participants had no conscious experience or knowledge of these cues, but their performance was significantly improved on switch trials after cues that predicted task switches (but not particular tasks). This utilization of subliminal information was flexible and adapted to a change in cues predicting task switches and occurred only when switch trials were difficult and effortful. When cues were consciously visible, participants were unable to discern their relevance and could not use them to enhance switch performance. Our results show that unconscious cognition can implicitly use subliminal information in a goal-directed manner for anticipatory control, and they also suggest that subliminal representations may be more conducive to certain forms of associative learning.


Assuntos
Antecipação Psicológica/fisiologia , Aprendizagem por Associação/fisiologia , Estimulação Subliminar , Adolescente , Adulto , Condicionamento Clássico , Sinais (Psicologia) , Feminino , Humanos , Masculino , Adulto Jovem
5.
J Integr Neurosci ; 14(1): 97-120, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25747570

RESUMO

The present study examined rats' ability to anticipate undetectable wider gaps between rungs produced when they stepped on and dislodged damaged rungs while they traversed a slightly inclined elevated ladder. Rats in the first of three experiments reduced running speeds when they encountered four evenly spaced damaged rungs either always placed on the first or second half of the ladder (the break-a-way (BW) phase) but quickly recovered to their baseline (BL) levels when damaged rungs where replaced with intact rungs (the recovery phase). Rats previously exposed to damaged rungs over the first half of the ladder increased their speeds above BL on its second "safer" half during the recovery phase, a delayed "relief-like" positive contrast effect. In Experiment 2, other rats decreased their speeds more as they approached a single damaged rung at a fixed location when it occurred before than after the mid-point of the ladder. Although they quickly recovered to BL speeds on the portion of the ladder after the damaged rung or replaced intact rung, they never showed any "relief-like"/escape effects. Rats also reduced their likelihood of dislodging the damaged rung with a fore paw over extended BW training. In the third experiment rats encountered a more easily dislodged damaged rung that was signaled by a closer intact rung on half the trials. Under these conditions rats displayed a more reliable positive contrast "relief-like" effect. We discussed how traditional associative and cognitive theories of aversive conditioning account for these findings and their relationship to normal changes in dopamine production and possible effects of reduced production from the substantia nigra pars compacta (SNpc) in the Basal ganglia in rodent models of Parkinson's disease.


Assuntos
Locomoção/fisiologia , Doença de Parkinson/diagnóstico , Doença de Parkinson/fisiopatologia , Desempenho Psicomotor/fisiologia , Análise de Variância , Animais , Fenômenos Biomecânicos , Condicionamento Clássico , Modelos Animais de Doenças , Medo , Masculino , Atividade Motora/fisiologia , Ratos , Ratos Long-Evans , Fatores de Tempo
6.
Psychol Sci ; 25(5): 1059-66, 2014 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-24570260

RESUMO

Adequate perception of bodily sensations is essential to protect health. However, misinterpretation of signals from within the body is common and can be fatal, for example, in asthma or cardiovascular disease. We suggest that placing interoceptive stimuli into interoceptive categories (e.g., the category of symptoms vs. the category of benign sensations) leads to perceptual generalization effects that may underlie misinterpretation. In two studies, we presented stimuli inducing respiratory effort (respiratory loads) either organized into categories or located on a continuous dimension. We found pervasive effects of categorization on magnitude estimations, affective stimulus evaluations, stimulus recognition, and breathing behavior. These findings indicate the need for broadening perspectives on interoception to include basal processes of stimulus organization, in order for interoceptive bias to be understood. The results are relevant to a wide range of interoception-related phenomena, from emotion to symptom perception.


Assuntos
Emoções/fisiologia , Interocepção/fisiologia , Mecânica Respiratória/fisiologia , Sensação/fisiologia , Adulto , Cognição/fisiologia , Feminino , Humanos , Masculino , Respiração , Software , Adulto Jovem
7.
Psychol Sci ; 25(9): 1804-15, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25079218

RESUMO

The social world is stratified. Social hierarchies are known but often disavowed as anachronisms or unjust. Nonetheless, hierarchies may persist in social memory. In three studies (total N > 200,000), we found evidence of social hierarchies in implicit evaluation by race, religion, and age. Participants implicitly evaluated their own racial group most positively and the remaining racial groups in accordance with the following hierarchy: Whites > Asians > Blacks > Hispanics. Similarly, participants implicitly evaluated their own religion most positively and the remaining religions in accordance with the following hierarchy: Christianity > Judaism > Hinduism or Buddhism > Islam. In a final study, participants of all ages implicitly evaluated age groups following this rule: children > young adults > middle-age adults > older adults. These results suggest that the rules of social evaluation are pervasively embedded in culture and mind.


Assuntos
Etarismo , Atitude , Etnicidade , Hierarquia Social , Racismo , Religião , Percepção Social , Adolescente , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Preconceito , Adulto Jovem
8.
Addict Biol ; 19(3): 467-81, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-23822813

RESUMO

This research assessed activation in neural substrates involved in implicit associative processes through functional magnetic resonance imaging of an alcohol-Implicit Association Test (IAT) focused on positive outcomes of alcohol use. Comparisons involved 17 heavy and 19 light drinkers, ranging in age from 18 to 22, during compatible and incompatible association task trials. Behaviorally, a significant IAT effect was found with heavy drinkers showing stronger positive implicit associations toward alcohol use than light drinkers. Imaging data revealed heavy drinkers showed greater activity during compatible trials relative to incompatible trials in the left putamen and insula while no significant difference in activity between conditions was found in the light drinkers. Light drinkers showed significantly more activity in the left orbital frontal cortex during both compatible and incompatible trials than heavy drinkers, and the dorsolateral prefrontal cortex was engaged more in both light and heavy drinkers during incompatible trials relative to compatible trials. Further, within-group analyses showed significant amygdala activity along with the putamen and insula among heavy drinkers during compatible trials relative to incompatible trials. These results are consistent with a dual process framework of appetitive behaviors proposing that (1) implicit associations underlying habit are mediated through neural circuitry dependent on the striatum, and (2) controlled behaviors are mediated through neural circuitry more dependent on the prefrontal cortex. This is the first study to evaluate the neural mechanisms elicited by an alcohol-IAT, providing an additional step toward increasing understanding of associative habit processes and their regulatory influence over addictive behaviors.


Assuntos
Consumo de Bebidas Alcoólicas/fisiopatologia , Córtex Cerebral/fisiopatologia , Adolescente , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Memória de Curto Prazo/fisiologia , Desempenho Psicomotor/fisiologia , Tempo de Reação/fisiologia , Adulto Jovem
9.
Psychol Sci ; 24(12): 2437-44, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24113624

RESUMO

In the field study reported here (N = 222,924), we found that Germans with noble-sounding surnames, such as Kaiser ("emperor"), König ("king"), and Fürst ("prince"), more frequently hold managerial positions than Germans with last names that either refer to common everyday occupations, such as Koch ("cook"), Bauer ("farmer"), and Becker/Bäcker ("baker"), or do not refer to any social role. This phenomenon occurs despite the fact that noble-sounding surnames never indicated that the person actually held a noble title. Because of basic properties of associative cognition, the status linked to a name may spill over to its bearer and influence his or her occupational outcomes.


Assuntos
Nomes , Ocupações/estatística & dados numéricos , Seleção de Pessoal , Percepção Social , Adulto , Associação , Alemanha/etnologia , Humanos
10.
Psychol Sci ; 24(10): 2030-7, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23982242

RESUMO

Reward-associated cues are known to influence motivation to approach both natural and man-made rewards, such as food and drugs. However, the mechanisms underlying these effects are not well understood. To model these processes in the laboratory with humans, we developed an appetitive Pavlovian-instrumental transfer procedure with a chocolate reward. We used a single unconstrained response that led to an actual rather than symbolic reward to assess the strength of reward motivation. Presentation of a chocolate-paired cue, but not an unpaired cue, markedly enhanced instrumental responding over a 30-s period. The same pattern was observed with 10-s and 30-s cues, showing that close cue-reward contiguity is not necessary for facilitation of reward-directed action. The results confirm that reward-related cues can instigate voluntary action to obtain that reward. The effectiveness of long-duration cues suggests that in clinical settings, attention should be directed to both proximal and distal cues for reward.


Assuntos
Condicionamento Clássico/fisiologia , Sinais (Psicologia) , Objetivos , Motivação/fisiologia , Recompensa , Transferência de Experiência/fisiologia , Adolescente , Adulto , Cacau , Doces , Feminino , Humanos , Masculino , Adulto Jovem
11.
J Pers ; 81(4): 345-54, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23126595

RESUMO

OBJECTIVE: Neuroticism is a strong predictor of future mental health problems. The informativeness of this association has been questioned because of the limited understanding of the mechanisms underlying Neuroticism. In this article the authors extend our understanding of the association between information processing and Neuroticism. METHOD: Two independent studies involving separate sets of college students (N = 89 and N = 33), use self-rated Neuroticism scores to compare individuals' ability to learn simple and more complex discriminations, between simple shapes and words presented alone and in compound. RESULTS: Neuroticism was found to be associated with differences in learning to discriminate simple stimuli from compounds containing the same simple stimuli. Individuals with high levels of Neuroticism appeared to process compounds of stimuli as whole units even when this ceased to be an effective strategy for learning. In contrast, individuals with lower levels of Neuroticism performed better with discriminations that could be solved while learning about separate stimuli, rather than compounds. CONCLUSIONS: The authors discuss possible mechanisms of learning identified by these tasks and consider what implications their observations have for an understanding of the relationship between Neuroticism and mental health problems.


Assuntos
Transtornos de Ansiedade/psicologia , Aprendizagem por Discriminação , Generalização Psicológica , Personalidade , Adolescente , Adulto , Feminino , Humanos , Masculino , Testes Neuropsicológicos , Neuroticismo , Autorrelato , Estudantes , Inquéritos e Questionários
12.
Q J Exp Psychol (Hove) ; 72(2): 182-192, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28764580

RESUMO

When multiple cues are presented in compound and trained to predict an outcome, the cues may compete for association with an outcome. However, if both cues are necessary for solution of the discrimination, then competition might be expected to interfere with the solution of the discrimination. We consider how unequal stimulus salience influences learning in configural discriminations, where no individual stimulus predicts the outcome. We compared two hypotheses: (1) salience modulation minimises the initial imbalance in salience and (2) unequal stimulus salience will impair acquisition of configural discriminations. We assessed the effect of varying stimulus salience in a biconditional discrimination (AX+, AY-, BX-, BY+). Across two experiments, we found stronger discrimination when stimuli had matched, rather than mismatched, salience, supporting our second hypothesis. We discuss the implications of this finding for Mackintosh's model of selective attention, modified elemental models and configural models of learning.


Assuntos
Aprendizagem por Associação/fisiologia , Atenção/fisiologia , Sinais (Psicologia) , Aprendizagem por Discriminação/fisiologia , Discriminação Psicológica/fisiologia , Adulto , Feminino , Humanos , Masculino , Adulto Jovem
13.
Cognition ; 168: 91-98, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-28666214

RESUMO

A growing body of evidence suggests that adults can monitor other people's beliefs in an efficient way. However, the nature and the limits of efficient belief tracking are still being debated. The present study addressed these issues by testing (a) whether adults spontaneously process other people's beliefs when overt task instructions assign priority to participants' own belief, (b) whether this processing relies on low-level associative processes and (c) whether the propensity to track other people's beliefs is linked to empathic disposition. Adult participants were asked to alternately judge an agent's belief and their own belief. These beliefs were either consistent or inconsistent with each other. Furthermore, visual association between the agent and the object at which he was looking was either possible or impeded. Results showed interference from the agent's belief when participants judged their own belief, even when low-level associations were impeded. This indicates that adults still process other people's beliefs when priority is given to their own belief at the time of computation, and that this processing does not depend on low-level associative processes. Finally, performance on the belief task was associated with the Empathy Quotient and the Perspective Taking scale of the Interpersonal Reactivity Index, indicating that efficient belief processing is linked to a dispositional dimension of social functioning.


Assuntos
Relações Interpessoais , Julgamento , Percepção Social , Adulto , Empatia , Humanos , Masculino , Adulto Jovem
14.
Q J Exp Psychol (Hove) ; 69(12): 2452-2470, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26595818

RESUMO

Two experiments examined the role of propositional and automatic (ideomotor) processes in cue-elicited responding for rewarding outcomes (beer and chocolate). In a training phase, participants earned either chocolate or beer points by making one of two button-press responses. Rewards were indicated by the presentation of chocolate and beer pictures. On test, each trial began with a picture of beer or chocolate, or a blank screen, and choice of the beer versus chocolate response was assessed in the presence of these three pictures. Participants tended to choose the beer and chocolate response in the presence of the beer and chocolate pictures, respectively. In Experiment 1, instructions signalling that the pictures did not indicate which response would be rewarded significantly reduced the priming effect. In Experiment 2, instructions indicating that the pictures signified which response would not be rewarded resulted in a reversed priming effect. Finally, in both experiments, the priming effect correlated with self-reported beliefs that the cues signalled which response was more likely to be reinforced. These results suggest that cue-elicited response selection is mediated by a propositional belief regarding the efficacy of the response-outcome relationship, rather than an automatic ideomotor mechanism.


Assuntos
Associação , Sinais (Psicologia) , Motivação , Recompensa , Transferência de Experiência/fisiologia , Adolescente , Adulto , Análise de Variância , Comportamento de Escolha , Condicionamento Operante , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reforço Psicológico , Adulto Jovem
15.
Front Cell Neurosci ; 7: 78, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23750126

RESUMO

From a behavioral perspective, the CA3a,b subregion of the hippocampus plays an important role in the encoding of new spatial information within short-term memory with a duration of seconds and minutes. This can easily be observed in tasks that require rapid encoding, novelty detection, one-trial short-term or working memory, and one-trial cued recall primarily for spatial information. These are tasks that have been assumed to reflect the operations of episodic memory and require interactions between CA3a,b and the dentate gyrus (DG) via mossy fiber inputs into the CA3a,b. The CA3a,b is also important for encoding of spatial information requiring the acquisition of arbitrary and relational associations. All these tasks are assumed to operate within an autoassociative network function of the CA3 region. The CA3a,b also supports retrieval of short-term memory information based on a spatial pattern completion process. Based on afferent inputs into CA3a,b from the DG via mossy fibers and afferents from the entorhinal cortex into CA3a,b as well as reciprocal connections with the septum, CA3a,b can bias the process of encoding utilizing the operation of spatial pattern separation and the process of retrieval utilizing the operation of pattern completion. The CA3a,b also supports sequential processing of information in cooperation with CA1 based on the Schaffer collateral output from CA3a,b to CA1. The CA3c function is in part based on modulation of the DG in supporting pattern separation processes.

16.
Behav Brain Res ; 256: 494-502, 2013 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-24029699

RESUMO

This research evaluated the neural correlates of implicit associative memory processes (habit-based processes) through the imaging (fMRI) of a marijuana Implicit Association Test. Drug-related associative memory effects have been shown to consistently predict level of drug use. To observe differences in neural activity of associative memory effects, this study compared 13 heavy marijuana users and 15 non-using controls, ranging in age from 18 to 25, during performance of a marijuana Implicit Association Test (IAT). Group by condition interactions in the putamen, caudate, and right inferior frontal gyrus were observed. Relative to non-users, marijuana users showed greater bilateral activity in the dorsal striatum (caudate and putamen) during compatible trials focused on perceived positive outcomes of use. Alternatively, relative to the marijuana-using group, the non-users showed greater activity in the right inferior frontal gyrus during incompatible trials, which require more effortful processing of information. Further, relative to fixation, heavy users showed bilateral activity in the caudate and putamen, hippocampus and some frontal regions during compatible trials and no significant activity during incompatible trials. The non-using group showed greater activity in frontal regions during incompatible trials relative to fixation and no significant activity during compatible trials. These findings are consistent with a dual process framework of appetitive behaviors proposing that (1) implicit associations underlying habit are mediated through neural circuitry dependent on the striatum, and (2) deliberative/controlled behaviors are mediated through circuitry more dependent on the prefrontal cortex.


Assuntos
Associação , Abuso de Maconha/fisiopatologia , Fumar Maconha/fisiopatologia , Córtex Pré-Frontal/fisiopatologia , Adolescente , Adulto , Mapeamento Encefálico , Cannabis , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino
17.
Rev. psicol. polit ; 16(37): 349-365, set.-dez. 2016.
Artigo em Espanhol | LILACS | ID: biblio-961960

RESUMO

El presente artículo busca aportar a la discusión sobre el Fortalecimiento Institucional de procesos asociativos rurales en Uruguay. Desde la década del '90 los gobiernos uruguayos han trabajado en fortalecer este sector de la producción a través de diversas políticas que llegan hasta la actualidad. En este sentido cabe preguntarse ¿De qué forma se busca fortalecer la institucionalidad de los procesos asociativos? Y ¿Como impacta en las organizaciones los efectos de estas políticas públicas? Para buscar dar respuesta a estas problemáticas se realizó un abordaje desde un enfoque territorial de las ruralidades y desde la Psicología de las Organizaciones y el Trabajo (POT). La invitación es, además, a realizar un recorrido por más de dos décadas de políticas de apoyo a los procesos asociativos de productores familiares y asalariados, teniendo en cuenta los aspectos macro-políticos, económicos y sociales que afectan al agro uruguayo.


This article seeks to contribute on the discussion of Institutional Strengthening of rural associative processes in Uruguay. Since the 90s, Uruguayan governments have worked to strengthen this sector of production through various policies that have reached the present day. In this sense, it is necessary to ask: How is it sought to strengthen the institutionality of associative processes? And how do the effects of these public policies impact on organizations? In order to answer these problems, an approach will be taken from a territorial focus of the ruralities and from the Psychology of Organizations and Work (POT). The invitation is also to make a journey through more than two decades of policies to support the associative processes of family producers and wage earners, taking into account the macro-political, economic and social aspects that affect Uruguayan agriculture.


Este artigo busca contribuir para a discussão sobre fortalecimento institucional dos processos associativos rurais no Uruguai. Desde 1990 os governos uruguaios trabalharam para fortalecer este setor de produção através de várias políticas que vão ter continuidade até a atualidade. Neste sentido, é necessário perguntar-se: como se busca fortalecer a institucionalidade dos processos associativos? E como estas políticas públicas afetam as organizações? Para responder a esses questões, realizou-se uma abordagem territorial das ruralidades e da Psicologia das Organizações e o Trabalho (POT). O convite também é fazer um recorrido através de mais de duas décadas de políticas orientadas a apoiar os processos associativos dos produtores familiares e assalariados, levando em consideração os aspectos macro-políticos, econômicos e sociais que afetam o agro uruguaio.


L article présente cherche apporter la discussion sur le renforcement de processus associatifs rural en Uruguay. Depuis les années 90 les gouvernements uruguayens ont travaillé pour ce secteur de la production à travers de divers politiques jusqu'à la actualité. Dans ce cas il faut se demander de De quelle façon on cherche fortifier linstutinnalité des processus associatifs? Et Comment percute dans les organisations les effets de ces politiques publiques? Pour pouvoir répondre ce problème on fera un abordage a partir d'un point de vue territorialité des ruralités et de la Psychologie des Organisations et du Travail (POT)

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