The effects of Δ9 THC on cutaneous sensitivity and its relation to personality

Pain threshold/tolerance and vibration perception were studied in a sample of female frequent and infrequent cannabis users. Interactions with personality characteristics were examined using the EPI. Performance on all measures was investigated after oral administration of either 10mgΔ⁹ THC or 20 mg Δ⁹ THC. Results indicated that while the 10mg dosage produced no consistent changes in cutaneous sensory response, the 20 mg dosage was followed by lowering of the vibration threshold. Frequent and infrequent cannabis users differed in their response to the pain stimulus (pain tolerance scores were higher among infrequent users). They also differed with respect to the personality measure (frequent users had lower E, N and L scores). The findings provide experimental support for cannabis users' reports of enhanced sensory awareness consequent to drug intake. The results also show that frequent and infrequent cannabis users differ in pain response and personality characteristics.     

The name letter effect: Attachment to self or primacy of own name writing?

Bulgarian students who first learned to write in the Cyrillic alphabet prefer own name letters in the Cyrillic but also in the Roman alphabet, with which they became acquainted only many years later. These findings which are intra-individually correlated, support Nuttin S interpretation of the Name Letter Effect in terms of attachment to self and contradict a ‘primacy of own name writing’ explanation.     

Does personality vary across ability levels? A study using self and other ratings

To test the hypothesis that personality structure differs across levels of cognitive ability, personality traits of 154 participants of various ages and educational backgrounds were rated by themselves and two well-informed judges using the Estonian Personality Item Pool NEO (EPIP-NEO; Mõttus, Pullmann, & Allik, 2006). When participants were divided into two groups on the basis of their ability test scores, a relatively high cross-observer agreement was observed in the both ability groups. Although in the high-ability group personality traits were slightly less correlated and factor structures were somewhat more similar to the normative American self-report structure of the NEO-PI-R, there was no evidence that personality structure differs substantially across ability groups.     

Claiming best or better? The effect of target brand's and competitor's puffery on holistic and analytic thinkers

Previous empirical studies have yielded contradictory results about how consumers react to puffed claims in advertisements. This study addresses this issue by considering how consumers' thinking style and competitors' puffery interact to influence consumers' brand attitude in terms of product puffery. Drawing upon experiments using fictitious and real brand names, three studies provide converging evidence that holistic thinkers will form a more positive brand attitude when exposed to the target brand's low‐puffery (vs. no puffery or high puffery) claims. In contrast, analytic thinkers are less sensitive to puffery, and their brand attitude will not change. Further, holistic thinkers are more sensitive to the presence of competitor's puffery. Holistic thinkers exposed to competitor's high‐puffery (vs. low) claims form a more positive brand attitude toward the target brand. For analytic thinkers, competitor's puffery level will not significantly affect their attitude toward the target brand. Our findings shed fresh light on the inconclusive results of prior studies and offer practical implications for marketing puffery.     

How social was personality? The Allports' "connection" of social and personality psychology

This paper investigates three conflicting reconstructions of the historical relationship between personality and social psychology and addresses questions they raise regarding the subdisciplinary status of personality in the 1920s and the way in which the field gradually emerged as a separate area of psychology. Contesting claims that Floyd Allport first connected social psychology to a separate "branch" of personality psychology in the 1920s, I argue that he drew upon earlier work of psychologists and sociologists who treated personality as a central topic of social psychology. I compare Floyd Allport's views with those of Gordon Allport, who endeavored to establish personality as a separate subdiscipline.     

The subjective–agentic personality sector (SAPS): Introduction to the special issue on self,identity, and psychopathology

This special issue is predicated upon the premise that there exists a subjective–agentic personality sector (SAPS) that is crucially relevant to the understanding and treatment of psychopathology. SAPS is often overlooked by “trait” models in personality psychology. It is comprised of “hot” cognitions about one's self and identity as they unfold throughout the life span and are brought to bear on interpersonal relationships. There are four ways in which SAPS may be involved in psychopathology: (a) inherently, as a component of psychiatric disorders, (b) as a passive vulnerability dimension, namely by interacting with life stress, (c) as an active vulnerability dimension, that is, by propelling external situations that culminate in psychopathology, and (d) by constituting a central consequent of psychopathology (i.e., the scarring pattern, see below). In this Journal of Personality special issue, experts in personality and psychopathology demonstrate the centrality of SAPS in unipolar depression, anxiety disorders, bipolar spectrum disorder, eating disorders, posttraumatic stress disorder, complex trauma and borderline personality disorder, social anxiety disorder, suicidality in the context of mood disorders, and recovery from schizophrenia. A commentary by Dan McAdams, a leader in the study of self and identity, concludes this special issue.     

A meditation on the nature of self‐healing and personality change in psychotherapy based on Gendlin's theory of experiencing

Abstract

From a humanistic point of view psychotherapy is a creative transformational process in which therapists assist clients’ intrinsic self‐healing tendencies. However the nature of the self‐healing process is poorly understood. I briefly consider two theories of self‐healing, Rogers’ self‐actualization theory and dialectical theory, but focus on Gendlin's theory of experiencing as providing a more complete explanation. I consider the fundamentally implicational nature of change and portray personal change as “paradigm evolution” rather than paradigm revolution. I conclude with an examination of the self‐healing process in therapies that provide minimal prosthetic assistance to the client: client‐centered therapy, eye movement desensitization and reprocessing, and focusing‐oriented therapy. I conclude that the self‐healing/self‐change process occurs when intellectual, “top‐down” cognitive and self‐critical activity is interrupted, and when clients adopt a receptive, listening attitude towards inner experience.     

Who likes whom? The interaction between perceiver personality and target look

We investigated determinants of liking at zero-acquaintance, focusing on individual differences in perceivers’ reactions to appearance cues. Perceivers (N = 385) viewed portrait photographs of Targets (N = 146). Perceiver’s Agreeableness and Extraversion were uniquely associated with liking targets. Targets who expressed positive emotions, looked relaxed, were physically attractive, and looked healthy and energetic, were the most liked. There were substantial individual differences in how Perceivers were influenced by appearance cues. For instance, Perceivers generally rated targets who displayed non-Duchenne (fake) smiles less favorably than targets who did not smile or targets who displayed Duchenne (authentic) smiles. However, non-Duchenne smiles elicited especially negative ratings from Perceivers high in Neuroticism or Conscientiousness, but not from Perceivers low in Agreeableness.     

True to oneself? Broad and narrow ideas on authenticity in the enhancement debate

Our knowledge of the human brain and the influence of pharmacological substances on human mental functioning is expanding. This creates new possibilities to enhance personality and character traits. Psychopharmacological enhancers, as well as other enhancement technologies, raise moral questions concerning the boundary between clinical therapy and enhancement, risks and safety, coercion and justice. Other moral questions include the meaning and value of identity and authenticity, the role of happiness for a good life, or the perceived threats to humanity. Identity and authenticity are central in the debate on psychopharmacological enhancers. In this paper, I first describe the concerns at issue here as extensively propounded by Carl Elliott. Next, I address David DeGrazia’s theory, which holds that there are no fundamental identity-related and authenticity-related arguments against enhancement technologies. I argue, however, that DeGrazia’s line of reasoning does not succeed in settling these concerns. His conception of identity does not seem able to account for the importance we attach to personal identity in␣cases where personal identity is changed through enhancement technology. Moreover, his conception of authenticity does not explain the reason why we find inauthentic values objectionable. A broader approach to authenticity can make sense of concerns about changes in personal identity by means of enhancement technologies.     

Are risk preferences consistent?: The influence of decision domain and personality

This paper examines the consistency of risk preferences across three decision domains important in most people’s lives: work, health and personal finance. We consider the degree to which the five factor model of personality and a range of factors that influence risk-related decision-making (perceived risk, framing, emotions and cost–benefit analysis) impact upon cross-domain consistency. Data were gathered from a sample of participants for whom approaches to risk were likely to vary (academics, chess players, firefighters, mountaineers and City traders). The results showed that participants could be categorised into two groups: those who were consistent in their risk preferences in three decision domains, and those who were inconsistent or domain-specific. The consistent group was significantly lower on neuroticism and higher on agreeableness and conscientiousness with a less variable approach to weighing up the costs and benefits of taking risks than the inconsistent group. The majority of the consistent group was risk averse.When the domain-specific risk preferences of the inconsistent group were examined, data showed that different combinations of personality and decision-making factors predicted risk preferences within each domain.     

Gender differences in personality: Biological and/or psychological?

The results of three empirical studies are reported in which the hypothesis is tested that differences in personality variables between the morphophenotype sexes can be explained by psychological sex-role orientation variables. Furthermore, it was expected that normative sex-role orientations (measured with the SRO-S and the AWS-S Scales) and gender-related self-concepts (femininity, masculinity, and androgyny measured with a modified BSRI) explain more variance in personality variables than morphophenotype sex. Besides these sex-role orientation variables, test and questionnaire data on verbal fluency, spatial reasoning, self-concept, anxiety, and aggressiveness were obtained in Study I from 50 young adults and their same-sex parents; in Study II, data on verbal fluency, spatial reasoning, self-concept, anxiety, and neuroticism were obtained from 120 university students; and in Study III, data on anxiety, locus of control, and Machiavellianism were obtained from 226 university students. The results confirm both hypotheses for the two aspects of intelligence studied, domain-specific self-concepts, different aspects of anxiety and aggressiveness, neuroticism, powerful others' externality in locus of control, and Machiavellianism. For all these personality variables the effect sizes of the psychological gender variables were larger than those of morphophenotype sex and reached medium to large values.     

No‐self,real self,ignorance and self‐deception: Does self‐deception require a self?

In this paper I dispute Eliot Deutsch's claim [See Deutsch, Eliot (1996) Self‐deception: a comparative study, in: Roger T. Ames and Wimal Dissanayake (Eds) Self and Deception: a cross‐cultural enquiry (Albany, State University of New York Press), pp. 315–326] that examining self‐deception from the perspective of non‐Western traditions (i.e. how it is understood in those cultures) can help us to better understand the nature of the phenomenon in one's own culture. Although the claim appears to be uncontrover‐sial and perhaps even self‐evident, I shall argue that it is fundamentally mistaken. What is important about both the claim and my critical assessment of it is not what it tells us about self‐deception. I shall show that it tells us little about self‐deception; that Deutsch confuses ignorance with self‐deception; and that he straightforwardly equivocates on the concept. Instead, what is interesting is what Deutsch's treatment of self‐deception in comparative perspective can tell us about comparative philosophy. The significance of what follows in this paper is less about self‐deception than it is about comparative philosophy.     

Does intergroup contact affect personality? A longitudinal study on the bidirectional relationship between intergroup contact and personality traits

We conducted a longitudinal study to test whether, in addition to being predicted by personality, intergroup contact is longitudinally associated with personality traits. Participants were 388 majority (Italian) and 109 minority (immigrant) first‐year high school students. Results revealed a bidirectional relationship between contact and personality: Quality of contact was longitudinally associated with greater agreeableness and openness to experience, whereas agreeableness and openness to experience were longitudinal predictors of contact quality. An unexpected negative longitudinal association also emerged between quantity of contact and agreeableness. These effects were not moderated by group of belonging (majority vs. minority). Our findings highlight the importance of integrating research on intergroup contact with research on personality.     

Can harmful intergroup behaviors truly represent the self?: The impact of harmful and prosocial normative behaviors on intra-individual conflict and compartmentalization

This research investigates how group members subjectively feel about their prosocial vs. harmful intergroup behaviors, and whether these behaviors can represent who they are more globally as a person. Three experiments tested how group norms (pro-merit/parity vs. pro-discrimination) and congruence with these norms predicted compartmentalization of these intergroup behaviors in the self and intra-individual conflict. Experiment 1 (N = 122) revealed that participants who conformed to a pro-discrimination norm reported compartmentalizing this behavior to a greater extent than participants who conformed to a pro-merit norm. Experiments 2 (N = 149) and 3 (N = 222) replicated and extended these findings in real and conflictual intergroup settings, also over and above the effect of relevant superordinate norms. Mediated moderation analyses also revealed that following discriminatory norms was associated with more intra-individual conflict, and that this conflict in turn predicted higher compartmentalization.     

Histrionic personality disorder and antisocial personality disorder: sex-differentiated manifestations of psychopathy?

Little is known about the etiology of histrionic personality disorder (HPD) or its relation to other personality disorders. In this study, we examined whether HPD is etiologically related to psychopathy and more specifically whether HPD and antisocial personality disorder (ASPD) are sex-typed alternative manifestations of psychopathy. In addition, based on Newman's (1987) response modulation hypothesis of psychopathy, we examined the associations between psychopathic, HPD, and ASPD features and performance on laboratory measures of passive avoidance errors and interference effects. Seventy-five live theater actors completed self-report questionnaires and two laboratory measures of response modulation, and peers completed questionnaires concerning the participants' personality disorder features. The results provided weak and inconsistent support for the hypotheses that HPD is a female-typed variant of psychopathy and that ASPD is a male-typed variant of psychopathy. Contrary to previous findings, scores on response modulation tasks were not significantly related to psychopathy, or to either HPD or ASPD. The limitations of this study and possibilities for future research in this area are outlined.     

Agency and authenticity: Which value grounds patient choice?

In current American medical practice, autonomy is assumed to be more valuable than human life: if a patient autonomously refuses lifesaving treatment, the doctors are supposed to let him die. In this paper we discuss two values that might be at stake in such clinical contexts. Usually, we hear only of autonomy and best interests. However, here, autonomy is ambiguous between two concepts—concepts that are tied to different values and to different philosophical traditions. In some cases, the two values (that of agency and that of authenticity) entail different outcomes. We argue that the comparative value of these values needs to be assessed.