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1.
Cogn Emot ; 35(2): 225-240, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-32998646

RESUMO

Extensive experimental research has been conducted to investigate how individuals empathise with others depending on contextual and motivational factors. However, the effect of sexual objectification (i.e. focus on the individual's physical appearance over his/her mental state) on empathy is scarce at best thus far. The aim of this work is to shed light on whether objectification modulates empathic responses toward humans and human-like objects. In Experiment 1, participants either underwent visuo-tactile stimulation or witnessed another person (a mannequin, a sexualized or a non-sexualized female confederate) being stimulated with pleasant or unpleasant objects. Participants were then asked to report either their own or the other's emotional experience. Results showed that shared representations (i.e. similarity between self-other emotional ratings) are significantly lower for the mannequin, intermediate for the sexualized woman, and reach the highest values for the non-sexualized woman. In Experiment 2, shared representations were assessed during a ball-tossing game in which the participants or one of the two confederates (sexualized or non-sexualized woman) were excluded from the game. Again, results showed reduced similarity between self-other emotional ratings toward sexualized as compared to non-sexualized women. The findings suggest that interacting with sexually objectified women reduces empathic responses typically observed within human relations.


Assuntos
Emoções , Comportamento Sexual , Empatia , Feminino , Humanos , Masculino
2.
Cogn Behav Neurol ; 28(2): 71-9, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26102997

RESUMO

OBJECTIVE AND BACKGROUND: Patterns of brain-damaged individuals' deficits in categorizing living versus non-living things indicate separation of semantic knowledge categories in the brain. Recent work in patients with dementia suggested that semantic knowledge about social groups differs from knowledge about living and non-living things. In this study we analyzed patients' social appraisal by testing whether their degree of impairment in social-group knowledge predicted their social-group evaluative reactions (prejudice). We hypothesized that impaired knowledge about social groups would correlate with either heightened or reduced prejudice. METHODS: In Rumiati et al, Cogn Neurosci (2014) http://dx.doi.org/10.1080/17588928.2013.876981, we had given a sorting task to 21 patients with frontotemporal dementia or dementia of the Alzheimer type and 23 healthy controls, to test their knowledge of social groups and living and non-living things. In this study we asked the same participants to evaluate social groups. We used controls' evaluations to rank 20 social groups from extremely negative to extremely positive. We used patients' severity of deficit in sorting social groups to predict the patients' evaluations of the groups, controlling for their levels of deficit in sorting living and non-living items. We also compared the evaluations by patients±deficits in social-group sorting to controls' evaluations. RESULTS: The patients with impaired social-group knowledge evaluated the less-admired groups more positively than did controls, and the more-admired groups less positively. CONCLUSIONS: Impaired social-group knowledge, not a general semantic loss, predicts reduced evaluative bias. Our findings are consistent with neuroimaging evidence for a relationship between semantic and evaluative social-group processes.


Assuntos
Doença de Alzheimer/psicologia , Demência Frontotemporal/psicologia , Reconhecimento Visual de Modelos , Preconceito , Semântica , Percepção Social , Idoso , Idoso de 80 Anos ou mais , Formação de Conceito , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos
3.
J Soc Psychol ; 154(2): 105-14, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24765816

RESUMO

According to the Spatial Agency Bias (SAB), more agentic groups (men) are envisioned to the left of less agentic groups (women). This research investigated the role of social status in shaping the spatial representation of gender couples. Participants were presented pairs consisting of one male and one female target who confirmed gender stereotypes. The status of the targets in each pair was systematically varied (high-status vs. low-status job). Participants chose the target order (female/male vs. male/female) they preferred. In line with gender-status expectations (male: high-status, female: low-status), a male in a high-status job led to a spatial arrangement that favored the male/female order, regardless of the status of the female target. The female/male order was favored only when the female had a high-status job and the male a low-status job. No SAB occurred for pairs in which both targets displayed low-status jobs. The implications of status for the SAB are discussed.


Assuntos
Hierarquia Social , Sexismo/psicologia , Estereotipagem , Análise de Variância , Emprego/psicologia , Feminino , Humanos , Masculino , Ocupações , Estudantes/psicologia , Inquéritos e Questionários
4.
Br J Soc Psychol ; 63(2): 518-543, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37864396

RESUMO

We reconcile interactive and additive models of category intersection by recasting these theoretical efforts within the conceptual combination framework. In three studies (Ntot = 364), we showed that, in line with an interactive approach, combining 'elderly men' with 'gay men' generated an atypical subtype with unique attributes that could not be reduced to the sum of the attributes of the constituent categories (Studies 1-3). Moreover, consistent with the additive models, combining 'heterosexual men' with age categories (i.e. young/elderly men, Study 1) made their age typicality particularly salient, and 'young men' with sexual orientation categories (i.e. gay/heterosexual men, Study 2) emphasized their sexual orientation typicality. Also, participants not only appraised 'gay men' and 'young gay men' in part as redundant categories, but they also judged 'elderly men' and 'elderly heterosexual men' to be largely overlapping. These findings take advantage of a multi-method assessment, spanning from measures of perceived typicality to the analysis of attributes freely generated in reaction to the target categories. Our results inform cognitive models of multiple category combinations and shed light on the cognitive 'invisibility' of elderly gay men and its social implications.


Assuntos
Heterossexualidade , Comportamento Sexual , Masculino , Humanos , Feminino , Idoso , Comportamento Sexual/psicologia , Heterossexualidade/psicologia
5.
J Homosex ; : 1-25, 2024 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-38573805

RESUMO

We analyzed the age stereotypes of heterosexual, gay, and bisexual men and the implications of such stereotypes for the conceptualization of older gay and bisexual men, specifically. In Study 1a (N = 158) and 1b (N = 155), we found that compared to heterosexual men, participants stereotyped gay men more on young- than elderly-stereotypical traits. Participants represented bisexual men not as "somewhere in between" the stereotypes about heterosexual and gay men, but were characterized more by young- than elderly-stereotypical traits. In Study 2 (N = 106), we reasoned that because of their sexual orientation, both older gay and bisexual men would be viewed as atypical subtypes of older men, considered to be heterosexual by default. As atypical subtypes, both older gay and bisexual men may be stereotyped less on traits associated with elderly men and more on traits associated with their sexual orientation membership, namely young-stereotypical traits. Consistently, compared with older heterosexual men, both older gay and bisexual men were perceived as less typical of older men, and their perceived atypicality accounted for them being stereotyped less as older and more as younger men. The results have been examined for intersectional stereotyping research and practical implications are discussed.

6.
Br J Health Psychol ; 15(Pt 2): 253-64, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-19580701

RESUMO

OBJECTIVES: This study investigated the relationship between participants' expected levels of pain intensity before a colonoscopy, pain intensity experienced while they were undergoing this medical procedure (real-time pain), and their retrospective evaluation of this experience. DESIGN: Correlational design. Regression analyses were performed and mediational models were tested. METHODS: Ninety patients who were about to undergo a colonoscopy were asked to report the pain intensity on a scale ranging from 0 (no pain) to 10 (extreme pain). They reported the expected intensity of pain before the examination, their real-time intensity of pain every 60 s during the colonoscopy, and their global retrospective evaluation of the pain experienced when the procedure was over. RESULTS: Results confirmed that, regardless of participants' gender, the variability of the real-time pain distribution was a significant predictor of the accuracy of recall (i.e. the discrepancy between recalled pain and mean real-time pain). Moreover, participants' pain expectations preceding the examination were a significant predictor of the accuracy of recall. It was further demonstrated that the effect of patients' expectations on the discrepancy was mediated by the real-time pain variability. CONCLUSIONS: The results of the present study provide useful indications about what the target of interventions aimed at reducing the bias in pain recall should be.


Assuntos
Colonoscopia/psicologia , Rememoração Mental , Dor/psicologia , Enquadramento Psicológico , Adulto , Idoso , Feminino , Humanos , Julgamento , Masculino , Pessoa de Meia-Idade , Medição da Dor , Fatores Sexuais
7.
PLoS One ; 15(3): e0229321, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32155168

RESUMO

The goal of the present study was to investigate the causal direction of influence between the ingroup as a whole and the self or another ingroup member considering a key feature of groups, i.e., their perceived meaningfulness. To this goal, in Study 1, 2, and 3 we predicted a preference for self-stereotyping and ingroup-stereotyping in the meaningful social categories of sorority women, left-handed people and psychology students. In Study 4 we further expect that the meaningfulness attributed to a group moderates the direction of causality between individual and ingroup perception. Thus, we used one's Zodiac sign as the ingroup whose degree of meaningfulness varies across participants and we hypothesized higher levels of meaningfulness attributed to the ingroup to be associated with higher self- and ingroup-stereotyping. Using the methodologically stringent Induction Deduction Paradigm, participants were given information on unfamiliar dimensions, about either the ingroup or an individual (self or other ingroup member) and asked to make inferences on those same attributes about the ingroup (induction condition) or the individual (deduction condition). As predicted, a preference for deduction to the self (i.e., self-stereotyping) and deduction to another ingroup member (i.e., ingroup-stereotyping) were found for the meaningful groups of sorority women, left-handed people, and Psychology students (Studies 1, 2, and 3). In Study 4, consistent with predictions, the higher the level of attributed meaningfulness to the Zodiac system the higher the degree of deduction both to the self (self-stereotyping) and to another Zodiac ingroup member (ingroup-stereotyping). Several implications of these results are discussed, for example in relation to the possibility of educational interventions aimed at invalidating intergroup differences.


Assuntos
Influência dos Pares , Autoimagem , Feminino , Humanos , Masculino , Identificação Social , Percepção Social , Técnicas Sociométricas , Estereotipagem
8.
J Pers Soc Psychol ; 94(5): 839-59, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18444742

RESUMO

Six studies (N = 491) investigated the inductive potential of nouns versus adjectives in person perception. In the first 5 studies, targets were either described by an adjective (e.g., Mark is homosexual) or by the corresponding noun (e.g., Mark is a homosexual) or by both (Study 3). The authors predicted and found that nouns, more so than adjectives, (a) facilitate descriptor-congruent inferences but inhibit incongruent inferences (Studies 1-3), (b) inhibit alternative classifications (Study 4), and (c) imply essentialism of congruent but not of incongruent preferences (Study 5). This was supported for different group memberships and inclinations (athletics, arts, religion, sexual preference, drinking behavior, etc.), languages (Italian and German), and response formats, suggesting that despite the surface similarity of nouns and adjectives, nouns have a more powerful impact on person perception. Study 6 investigated the inverse relationship, showing that more essentialist beliefs (in terms of a genetic predisposition rather than training) lead speakers to use more nouns and fewer adjectives. Possible extensions of G. R. Semin and K. Fiedler's (1988) linguistic category model and potential applications for language use in intergroup contexts are discussed.


Assuntos
Relações Interpessoais , Semântica , Estereotipagem , Adulto , Cultura , Feminino , Humanos , Masculino , Determinação da Personalidade , Psicolinguística , Identificação Social , Comportamento Verbal
9.
PeerJ ; 6: e5680, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30280046

RESUMO

Recent research has shown that a brief, casual touch administered by an outgroup member reduces prejudice towards the group to which the toucher belongs. In this study, we take the research on physical contact and prejudice a step further by addressing the relation between individuals' amount of Experienced Intergroup Physical Contact (EIPC), across distinct contexts and involving different body parts, and attitudes towards foreign people. Specifically, we hypothesized that the amount of EIPC would be positively associated with both quantity and quality of intergroup contact, but that only quality would mediate the relationship between the amount of EIPC and outgroup attitudes, quality being more directly linked to the evaluative component of outgroup attitudes. To attain this aim, we asked participants to self-report the amount of EIPC, the quantity and quality of their intergroup contact and their attitudes towards foreign people. Consistent with our hypothesis: (1) as EIPC increased, positive attitudes towards foreign people increased; (2) higher levels of EIPC were associated with better quality and higher quantity of intergroup contact; (3) only quality of intergroup contact mediated the relationship between the amount of EIPC and attitudes towards foreign people. Results were discussed in relation to research on intergroup contact and physical contact.

10.
Cortex ; 99: 258-272, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29294431

RESUMO

Sexual objectification is a widespread phenomenon characterized by a focus on the individual's physical appearance over his/her mental state. This has been associated with negative social consequences, as objectified individuals are judged to be less human, competent, and moral. Moreover, behavioral responses toward the person change as a function of the degree of the perceived sexual objectification. In the present study, we investigated how behavioral and neural representations of other social pain are modulated by the degree of sexual objectification of the target. Using a within-subject fMRI design, we found reduced empathic feelings for positive (but not negative) emotions toward sexually objectified women as compared to non-objectified (personalized) women when witnessing their participation to a ball-tossing game. At the brain level, empathy for social exclusion of personalized women recruited areas coding the affective component of pain (i.e., anterior insula and cingulate cortex), the somatosensory components of pain (i.e., posterior insula and secondary somatosensory cortex) together with the mentalizing network (i.e., middle frontal cortex) to a greater extent than for the sexually objectified women. This diminished empathy is discussed in light of the gender-based violence that is afflicting the modern society.


Assuntos
Atitude , Encéfalo/fisiologia , Empatia/fisiologia , Distância Psicológica , Comportamento Sexual , Adolescente , Adulto , Encéfalo/diagnóstico por imagem , Córtex Cerebral , Feminino , Lobo Frontal , Neuroimagem Funcional , Violência de Gênero , Giro do Cíngulo , Humanos , Imageamento por Ressonância Magnética , Masculino , Dor , Córtex Somatossensorial , Teoria da Mente/fisiologia , Adulto Jovem
11.
Front Psychol ; 9: 1685, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30279670

RESUMO

In this set of research, we investigated the effects of intergroup physical contact on intergroup attitudes by relying on indirect contact strategies, namely the imagined contact paradigm. We implemented the imagined contact paradigm by leading participants to shape the mental imagery upon pictorial information. Specifically, in Study 1 participants saw a picture of a white hand touching a black hand [i.e., intergroup physical contact condition (InterPC)] or a picture of an outdoor scene (i.e., control condition), and were asked to imagine being either the toucher or in the outdoor scene, respectively. Results demonstrated that InterPC compared to control condition reduced intergroup bias. In Study 2 we compared the InterPC condition to a condition in which participants saw a white hand touching another white hand [i.e., intragroup physical contact (IntraPC)], and imagined to be the toucher. Again, we found that participants in the InterPC condition showed reduced intergroup bias compared to the IntraPC. Study 3 replicated results of Studies 1 and 2 by using an implicit measure of prejudice. Also, Study 3 further showed that asking participants to merely look at the picture of a white hand touching a black hand, without imagining being the toucher was not effective in reducing implicit prejudice. Results were discussed with respect to the literature on physical contact and prejudice reduction processes.

12.
PLoS One ; 13(4): e0193944, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29621249

RESUMO

A controversial hypothesis, named the Sexualized Body Inversion Hypothesis (SBIH), claims similar visual processing of sexually objectified women (i.e., with a focus on the sexual body parts) and inanimate objects as indicated by an absence of the inversion effect for both type of stimuli. The current study aims at shedding light into the mechanisms behind the SBIH in a series of 4 experiments. Using a modified version of Bernard et al.´s (2012) visual-matching task, first we tested the core assumption of the SBIH, namely that a similar processing style occurs for sexualized human bodies and objects. In Experiments 1 and 2 a non-sexualized (personalized) condition plus two object-control conditions (mannequins, and houses) were included in the experimental design. Results showed an inversion effect for images of personalized women and mannequins, but not for sexualized women and houses. Second, we explored whether this effect was driven by differences in stimulus asymmetry, by testing the mediating and moderating role of this visual feature. In Experiment 3, we provided the first evidence that not only the sexual attributes of the images but also additional perceptual features of the stimuli, such as their asymmetry, played a moderating role in shaping the inversion effect. Lastly, we investigated the strategy adopted in the visual-matching task by tracking eye movements of the participants. Results of Experiment 4 suggest an association between a specific pattern of visual exploration of the images and the presence of the inversion effect. Findings are discussed with respect to the literature on sexual objectification.


Assuntos
Atenção , Corpo Humano , Modelos Psicológicos , Comportamento Sexual/psicologia , Feminino , Humanos , Masculino , Estimulação Luminosa , Adulto Jovem
13.
PeerJ ; 6: e5844, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30397547

RESUMO

The current research aims to study the link between the type of vision experienced in a collaborative immersive virtual environment (active vs. multiple passive), the type of error one looks for during a cooperative multi-user exploration of a design project (affordance vs. perceptual violations), and the type of setting in which multi-user perform (field in Experiment 1 vs. laboratory in Experiment 2). The relevance of this link is backed by the lack of conclusive evidence on an active vs. passive vision advantage in cooperative search tasks within software based on immersive virtual reality (IVR). Using a yoking paradigm based on the mixed usage of simultaneous active and multiple passive viewings, we found that the likelihood of error detection in a complex 3D environment was characterized by an active vs. multi-passive viewing advantage depending on: (1) the degree of knowledge dependence of the type of error the passive/active observers were looking for (low for perceptual violations, vs. high for affordance violations), as the advantage tended to manifest itself irrespectively from the setting for affordance, but not for perceptual violations; and (2) the degree of social desirability possibly induced by the setting in which the task was performed, as the advantage occurred irrespectively from the type of error in the laboratory (Experiment 2) but not in the field (Experiment 1) setting. Results are relevant to future development of cooperative software based on IVR used for supporting the design review. A multi-user design review experience in which designers, engineers and end-users all cooperate actively within the IVR wearing their own head mounted display, seems more suitable for the detection of relevant errors than standard systems characterized by a mixed usage of active and passive viewing.

14.
Br J Soc Psychol ; 56(2): 270-280, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27905119

RESUMO

In this study, we investigate whether hormonal shifts during the menstrual cycle contribute to the dehumanization of other women and men. Female participants with different levels of likelihood of conception (LoC) completed a semantic priming paradigm in a lexical decision task. When the word 'woman' was the prime, animal words were more accessible in high versus low LoC whereas human words were more inhibited in the high versus low LoC. When the word 'man' was used as the prime, no difference was found in terms of accessibility between high and low LoC for either animal or human words. These results show that the female dehumanization is automatically elicited by menstrual cycle-related processes and likely associated with an enhanced activation of mate-attraction goals.


Assuntos
Desumanização , Inibição Psicológica , Ciclo Menstrual/psicologia , Adulto , Tomada de Decisões , Feminino , Humanos , Testes Neuropsicológicos , Tempo de Reação , Adulto Jovem
15.
PLoS One ; 11(6): e0158095, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27351978

RESUMO

Ample evidence attests that social intention, elicited through gestures explicitly signaling a request of communicative intention, affects the patterning of hand movement kinematics. The current study goes beyond the effect of social intention and addresses whether the same action of reaching to grasp an object for placing it in an end target position within or without a monitoring attendee's peripersonal space, can be moulded by pure social factors in general, and by social facilitation in particular. A motion tracking system (Optotrak Certus) was used to record motor acts. We carefully avoided the usage of communicative intention by keeping constant both the visual information and the positional uncertainty of the end target position, while we systematically varied the social status of the attendee (a high, or a low social status) in separated blocks. Only thirty acts performed in the presence of a different social status attendee, revealed a significant change of kinematic parameterization of hand movement, independently of the attendee's distance. The amplitude of peak velocity reached by the hand during the reach-to-grasp and the lift-to-place phase of the movement was larger in the high rather than in the low social status condition. By contrast, the deceleration time of the reach-to-grasp phase and the maximum grasp aperture was smaller in the high rather than in the low social status condition. These results indicated that the hand movement was faster but less carefully shaped in presence of a high, but not of a low social status attendee. This kinematic patterning suggests that being monitored by a high rather than a low social status attendee might lead participants to experience evaluation apprehension that informs the control of motor execution. Motor execution would rely more on feedforward motor control in the presence of a high social status human attendee, vs. feedback motor control, in the presence of a low social status attendee.


Assuntos
Movimento , Classe Social , Facilitação Social , Adulto , Fenômenos Biomecânicos , Mãos/fisiologia , Força da Mão , Humanos , Masculino , Distribuição Aleatória
16.
Front Aging Neurosci ; 8: 74, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27199731

RESUMO

In our daily lives, we often have to quickly estimate the emotions of our conspecifics in order to have successful social interactions. While this estimation process seems quite easy when we are ourselves in a neutral or equivalent emotional state, it has recently been shown that in case of incongruent emotional states between ourselves and the others, our judgments can be biased. This phenomenon, introduced to the literature with the term Emotional Egocentricity Bias (EEB), has been found to occur in young adults and, to a greater extent, in children. However, how the EEB changes across the life-span from adolescence to old age has been largely unexplored. In this study, we recruited 114 female participants subdivided in four cohorts (adolescents, young adults, middle-aged adults, older adults) to examine EEB age-related changes. Participants were administered with a recently developed paradigm which, by making use of visuo-tactile stimulation that elicits conflicting feelings in paired participants, allows the valid and reliable exploration of the EEB. Results highlighted a U-shape relation between age and EEB, revealing enhanced emotional egocentricity in adolescents and older adults compared to young and middle-aged adults. These results are in line with the neuroscientific literature which has recently shown that overcoming the EEB is associated with a greater activation of a portion of the parietal lobe, namely the right Supramarginal Gyrus (rSMG). This is an area that reaches full maturation by the end of adolescence and goes through an early decay. Thus, the age-related changes of the EEB could be possibly due to the life-span development of the rSMG. This study is the first one to show the quadratic relation between age and the EEB and set a milestone for further research exploring the neural correlates of the life-span development of the EEB. Future studies are needed in order to generalize these results to the male population and to explore gender differences related to the aging of socio- emotional processes.

17.
J Homosex ; 63(10): 1422-38, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26914405

RESUMO

Homophobic epithets have become commonly used insults among adolescents. However, evidence suggests that there are differences in how these homophobic epithets are evaluated based on beliefs held by the observer and the context in which they are used. To examine this, Italian high school students were asked to rate the offensiveness of homophobic epithets, as well as to consider how they or others would react to homophobic epithets across various situations. Homophobic beliefs and beliefs about the social acceptability of homophobic epithets were also examined. It was found that greater perceived social acceptability of homophobic epithets was related to dismissive reactions to their use, whereas homophobic beliefs were predictive of negative emotional reactions but in varying ways depending on the specific context. The results indicate that homophobic epithets may not always be perceived as homophobic by adolescents, and that attempts to alter the social acceptability of these insults may be an effective manner of reducing their use.


Assuntos
Comportamento do Adolescente , Homofobia , Estudantes , Comportamento Verbal , Adolescente , Feminino , Humanos , Masculino , Distância Psicológica , Estudantes/psicologia
18.
Br J Soc Psychol ; 54(2): 383-93, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25330919

RESUMO

This research investigated the behavioural consequences of homophobic epithets. After exposure to either a category or a homophobic label, heterosexual participants allocated fictitious resources to two different prevention programmes: one mainly relevant to heterosexuals (sterility prevention), the other to homosexuals (AIDS-HIV prevention). Responses on allocation matrices served to identify strategies that favoured the ingroup over the outgroup. Results indicated stronger ingroup-favouritism in the homophobic than in the category label condition. This study shows that discriminatory group labels have tangible effects on people's monetary behaviours in intergroup contexts, increasing their tendency to favour the ingroup when distributing resources.


Assuntos
Processos Grupais , Homofobia , Alocação de Recursos , Identificação Social , Feminino , Infecções por HIV/prevenção & controle , Humanos , Infertilidade/prevenção & controle , Masculino , Adulto Jovem
19.
Cortex ; 70: 155-68, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26211435

RESUMO

A person can be appraised as an individual or as a member of a social group. In the present study we tested whether the knowledge about social groups is represented independently of the living and non-living things. Patients with frontal and temporal lobe tumors involving either the left or the right hemisphere performed three tasks--picture naming, word-to-picture matching and picture sorting--tapping the lexical semantic knowledge of living things, non-living things and social groups. Both behavioral and voxel-based lesion-symptom mapping (VLSM) analyses suggested that social groups might be represented differently from other categories. VLSM analysis carried out on naming errors revealed that left-lateralized lesions in the inferior frontal gyrus, amygdala, insula and basal ganglia were associated with the lexical-semantic processing of social groups. These findings indicate that the social group representation may rely on areas associated with affective processing.


Assuntos
Neoplasias Encefálicas/psicologia , Lobo Frontal/fisiopatologia , Glioma/psicologia , Conhecimento , Meningioma/psicologia , Percepção Social , Lobo Temporal/fisiopatologia , Adulto , Idoso , Neoplasias Encefálicas/patologia , Neoplasias Encefálicas/fisiopatologia , Estudos de Casos e Controles , Formação de Conceito , Feminino , Lobo Frontal/patologia , Lateralidade Funcional , Glioma/patologia , Glioma/fisiopatologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Meningioma/patologia , Meningioma/fisiopatologia , Pessoa de Meia-Idade , Testes Neuropsicológicos , Semântica , Lobo Temporal/patologia
20.
Cogn Neurosci ; 5(2): 85-96, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24423240

RESUMO

The most relevant evidence for the organization of the conceptual knowledge in the brain was first provided by the patterns of deficits in brain-damaged individuals affecting one or another semantic category. Patients with various etiologies showed a disproportionate impairment in producing and understanding names of either living (fruits, vegetables, animals) or nonliving things (tools, vehicles, clothes). These double dissociations between spared and impaired recognition of living and nonliving things led to suggest that these categories are discretely represented in the brain. Recently social groups were found to be represented independently of traditional living and nonliving categories. Here we tested 21 patients with different types of primary dementia with three word sorting tasks tapping their conceptual knowledge about living and nonliving entities and social groups. Patients double dissociated in categorizing words belonging to the three categories. These findings clarify that knowledge about social groups is distinct from other semantic categories.


Assuntos
Demência/fisiopatologia , Testes Neuropsicológicos , Neuropsicologia/métodos , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Formação de Conceito/fisiologia , Humanos , Rememoração Mental/fisiologia , Pessoa de Meia-Idade , Semântica
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