The contributions of convergent thinking,divergent thinking,and schizotypy to solving insight and non-insight problems

The ability to generate diverse ideas (divergent thinking) is valuable in solving creative problems (e.g., insight problems); yet, however advantageous, this ability is insufficient to solve the problem alone and requires the ability to logically deduce an assessment of correctness of each solution (convergent thinking). Positive schizotypy may help isolate the aspects of divergent thinking prevalent in insight problem solving. Participants were presented with a measure of schizotypy (Oxford-Liverpool Inventory of Feelings and Experiences), divergent and convergent thinking tasks, insight problems, and non-insight problems. We found no evidence for a relationship between schizotypy and insight problem solving. Relationships between divergent thinking and insight problem solving were also surprisingly weak; however, measures of convergent thinking had a stronger relationship with problem solving. These results suggest that convergent thinking is more important than divergent thinking in problem solving.     

Dimensional schizotypy,autism, and unusual word associations in artists and scientists

Studies from a range of perspectives provide evidence for a relationship between creativity and the tendency to mental illness. The present study further examined this issue by administering questionnaires measuring the minor features of psychosis and autism to 31 professional “artists” (visual artists and musicians) and 28 professional “scientists” (biological scientists and physical scientists/mathematicians). The Oxford–Liverpool Inventory of Feelings and Experiences (O–LIFE), the Hypomanic Personality Scale, and the Autism-Spectrum Quotient (AQ), were administered, in addition to a shortened form of the Kent–Rosanoff Word Association Scale. The results provided strong support for the connection of artistic creativity to positive schizotypy and hypomania and the tendency to make unusual word associations, and somewhat weaker support for the connection of scientific creativity to certain components of the autism spectrum.     

Relationships between autistic-like and schizotypy traits: An analysis using the Autism Spectrum Quotient and Oxford-Liverpool Inventory of Feelings and Experiences

To further investigate claims of a relationship between autism and schizophrenia, the current study examined the associations between specific dimensions of autistic-like and schizotypy traits. These traits were assessed using the Autism Spectrum Quotient and the Oxford-Liverpool Inventory of Feelings and Experiences. After using factor analysis to explore the dimensions of autistic-like and schizotypy traits represented in these measures in two separate groups of students (N₁ = 362, N₂ = 639), the relationships between these dimensions were examined. While the results are consistent with suggestions in the literature of an overlap in the interpersonal deficits associated with autism and schizophrenia, they offer little support for Crespi and Badcock’s (2008) claim that autism and positive schizophrenia are diametrically opposed disorders.     

Social cues for creativity: The impact of behavioral mimicry on convergent and divergent thinking

We present behavioral mimicry as a social cue for creative thinking. Specifically, we argue that being mimicked by an interaction partner cues convergent thinking by signalling a social opportunity for collaboration, while not being mimicked cues divergent thinking by signalling a social demand for improvisation and innovation. To test this theory, we experimentally manipulated whether individuals were subtly mimicked or not by an experimenter during a 5 min social interaction, and subsequently measured participants’ capacity for convergent thinking (Experiment 1) and divergent thinking (Experiment 2). The results point to the importance of understanding how social relationships influence the creative processes and contributes to the growing understanding of the social function of behavioral mimicry.     

Effects of personality and threat of evaluation on divergent and convergent thinking

This study explores the effects of the Big Five personality traits and threat of evaluation on divergent and convergent thinking in a sample of 82 UK students. Results showed that Openness and Extraversion predicted divergent thinking under both threat of evaluation and no evaluation, whilst Neuroticism correlated significantly with divergent thinking (negatively) only under threat of evaluation. However, mediational analysis showed that the effects of Neuroticism on divergent thinking under threat of evaluation were fully accounted for by Extraversion. Thus neurotics’ divergent thinking was significantly more impaired because they were more introverted. Theoretical and practical implications are discussed.     

Unique sets of social and mood characteristics differentiate autistic and negative schizotypy traits in a young adult non-clinical sample

While well-established as distinct disorders, new evidence linking autism and schizophrenia has emerged. One line of evidence is the strong correlation identified between the social traits assessed by the Autism Spectrum Quotient (AQ:Social) and the negative traits of schizotypy. To further explore this association, the current study examined whether these sets of traits are convergent or divergent in the degree to which they relate to specific aspects of socio-emotional functioning. Regression analyses conducted on self-report data collected from 284 undergraduate students showed that the social items from the AQ uniquely relate to levels of social anxiety and social skills, while negative schizotypy traits uniquely relate to social anhedonia and depression. Additionally, AQ:Social and negative schizotypy traits were found to share a significant proportion of variance, independent of each of the socio-emotional variables examined. The results thus provide further evidence of shared atypical social function linked to both autistic-like traits and negative schizotypy traits, but importantly also highlight clear differences in the specific socio-emotional profiles associated with these sets of traits.     

Investigating the interaction between schizotypy, divergent thinking and cannabis use

Cannabis acutely increases schizotypy and chronic use is associated with elevated rates of psychosis. Creative individuals have higher levels of schizotypy, however links between cannabis use, schizotypy and creativity have not been investigated. We investigated the effects of cannabis smoked naturalistically on schizotypy and divergent thinking, a measure of creativity. One hundred and sixty cannabis users were tested on 1 day when sober and another day when intoxicated with cannabis. State and trait measures of both schizotypy and creativity were administered. Quartile splits compared those lowest (n=47) and highest (n=43) in trait creativity. Cannabis increased verbal fluency in low creatives to the same level as that of high creatives. Cannabis increased state psychosis-like symptoms in both groups and the high creativity group were significantly higher in trait schizotypy, but this does not appear to be linked to the verbal fluency change. Acute cannabis use increases divergent thinking as indexed by verbal fluency in low creatives.     

The interrelationship between speeded and unspeeded divergent thinking and reasoning, and the role of mental speed

The relationship between intelligence and creativity is still subject to substantial debate in the research literature. In the present study, we focused on core dimensions of both constructs, that is divergent thinking and reasoning. We hypothesized their relationship to depend both on the speededness of test tasks and on the subject's mental speed, positing that with increasing speededness of the tasks, mental speed would have a stronger impact on task outcomes. We disentangled the effects of task speededness and mental speed experimentally, testing 261 participants (mean age 14.48 years) with 12 divergent thinking and 12 reasoning tasks, 6 of each under power conditions, 6 time-constrained. In addition, we assessed mental speed with 6 tasks. We analyzed the data through structural equation modeling. Results confirmed our expectations: test speededness contributed significantly to mental speed variance in divergent thinking task performance. Divergent thinking assessed under time constraints was fully explained by divergent thinking assessed under power conditions and by mental speed. Divergent thinking and reasoning showed no correlation when controlling for mental speed. Our findings suggest that the correlations between divergent thinking and reasoning are mainly the result of variance both constructs share with mental speed, and that timed versus untimed test-taking plays a minor role.     

Schizotypy and affective temperament: Relationships with divergent thinking and creativity styles

Schizotypy and affective temperament have both been linked to creativity using measures such as divergent thinking (DT) but not in terms of creativity styles. The relationship between schizotypy and affective temperament has also not been examined directly in a creativity paradigm. Seventy-eight (44 female, 34 male) university students completed two DT tasks and measures of schizotypy, affective temperament, and creativity styles. Positive schizotypy was correlated with creativity styles, and affective temperament was correlated with both creativity styles and DT scores. Furthermore, schizotypy and affective temperament differentially predicted DT scores and creativity styles. Finally, the relationship between schizotypy and affective temperament gave evidence towards a unitary psychosis theory. Results are discussed in terms of current theories about psychosis and psychoticism and their association to creativity.     

Enhancing positive affect and divergent thinking abilities: Play some music and dance

This study compares the effect of dance on affect and cognition to music or exercise, in a young, non-clinical population. Participants were asked to complete tests of mood and creativity before and after spending 5 min either listening to music, dancing, cycling or sitting quietly. Both dancing and passively listening to music enhanced positive affect, decreased negative affect and reduced feelings of fatigue. Cycling and sitting quietly had no effect on positive mood or feelings of fatigue. Moreover, dancing and passively listening to music had dissociable effects on different aspects of creativity, with greater change in positive affect being associated with greater enhancement in measures of verbal and non-verbal creativity, respectively. We suggest that these findings support the use of either short duration dancing or passively listening to music as potentially powerful tools in enhancing emotional well-being and different aspects of divergent thinking in non-clinical settings.     

Unpleasant and pleasant referential thinking: Relations with self-processing, paranoia, and other schizotypal traits

Referential thinking is the tendency to view innocuous stimuli as having a specific meaning for the self and is associated with personality traits and disorders. In three studies, this research examined the relations among referential thinking, self-processing, and paranoia. In Study 1, follow-up questions on the Referential Thinking Scale (Lenzenweger, Bennett, & Lilenfeld, 1997) revealed that referential thoughts are experienced as unpleasant and pleasant. In Study 2, unpleasant referential thinking was more strongly associated with paranoia and maladaptive self-processing and personality. CFAs in Studies 1 and 2 found that unpleasant and pleasant referential thinking loaded on different factors. In Study 3, a group of participants with elevated schizotypal personality reported more unpleasant and pleasant referential thoughts than a control group.     

A cross-cultural investigation into the relationships between personality traits and work values

Over 500 working individuals from 2 European countries (Great Britain and Greece) participated in a 2-study investigation into the relationships between the Big Five personality factors and individuals' work values. In Study 1 (N = 314), British employees completed the 60-item NEO-Five-Factor Inventory (NEO-FFI; P. T. Costa & R. R. McCrae, 1989) and the Work Values Questionnaire (WVQ; Mantech, 1983), which comprises 37 items measuring intrinsic (e.g., autonomy) and extrinsic (e.g., pay) work values. In Study 2 (N = 216), Greek employees completed a Greek language measure of the Big Five and a translated version of the WVQ. The authors observed a similar factor structure for the WVQ items in both studies. Personality traits, age, and gender explained between 5% and 13% of the variance in the WVQ subscales. As a result of the 2 studies, the authors concluded that there are robust associations between certain personality traits and work values, although they do not clearly follow the intrinsic vs. extrinsic distinction.     

An investigation into the relationships between gender and language

The present investigation focused upon the impact of gender and various powerful and less powerful linguistic features on the communication of unfamiliar male and female college students. Same-sex and mixed-sex dyads were recorded as they engaged in discussions regarding suggestions for a bogus freshman orientation booklet. Although few gender differences were found, the result of a factor analysis yielded three factors: questions, suggestions, and process variables. These factors are consistent with a power perspective in the use of various linguistic features. However, the present findings suggest that gender and power alone cannot explain differences in communication styles. Rather, the results suggest the need to consider other aspects of the speaker to explain differences that occur in the use of language.     

Verbal fluency and creativity: General and specific contributions of broad retrieval ability (Gr) factors to divergent thinking

The Cattell–Horn–Carroll (CHC) model of intelligence views creativity as a first-level factor within the second-level factor of broad retrieval ability (Gr), alongside other first-level abilities such as ideational fluency and word fluency. Traditional methods of measuring creativity, however, confound idea quality with idea quantity, which might exaggerate the relationship between creativity scores and verbal fluency factors. Participants (n = 131 adults) completed two divergent thinking tasks (unusual uses for a rope and a box), which were scored using newer methods that effectively separate creativity (scored via subjective ratings) and fluency (scored as number of responses). They then completed 16 verbal fluency tasks that assessed six lower-order Gr factors: word fluency, associational fluency, associative flexibility, ideational fluency, letter fluency, and dissociative ability. Viewed singly, many of the lower-order factors significantly predicted creative quality and fluency. General Gr had substantial effects on creative quality (standardized β = .443) and fluency (β = .339) in a higher-order model as well as in a bifactor model (quality β = .380, fluency β = .327). Moreover, general Gr was the only significant predictor in the bifactor model, suggesting that it, not the specific factors, was most important. All effects were essentially the same after controlling for typing speed and vocabulary knowledge. The findings thus support the CHC view of creativity/originality as a lower-order component of Gr, illuminate the relationships between creativity and first-level Gr factors, extend the study of creativity and intelligence beyond fluid intelligence, and further indicate that creativity is more closely tied to cognitive abilities than creativity research has yet recognized.     

Enhanced divergent thinking and creativity in musicians: a behavioral and near-infrared spectroscopy study

Empirical studies of creativity have focused on the importance of divergent thinking, which supports generating novel solutions to loosely defined problems. The present study examined creativity and frontal cortical activity in an externally-validated group of creative individuals (trained musicians) and demographically matched control participants, using behavioral tasks and near-infrared spectroscopy (NIRS). Experiment 1 examined convergent and divergent thinking with respect to intelligence and personality. Experiment 2 investigated frontal oxygenated and deoxygenated hemoglobin concentration changes during divergent thinking with NIRS. Results of Experiment 1 indicated enhanced creativity in musicians who also showed increased verbal ability and schizotypal personality but their enhanced divergent thinking remained robust after co-varying out these two factors. In Experiment 2, NIRS showed greater bilateral frontal activity in musicians during divergent thinking compared with nonmusicians. Overall, these results suggest that creative individuals are characterized by enhanced divergent thinking, which is supported by increased frontal cortical activity.     

Allusive thinking (cognitive looseness) and the propensity to perceive “meaningful” coincidences

This study aimed at evaluating relations between the disposition to make “meaningful” associations between random events and potentially predisposing factors related to a more “loose” cognitive control, that is, loose associative processing (allusive thinking) and poorer inhibition of irrelevant memory content. As the findings of this study suggest, individuals with a higher disposition to perceive coincidences produced a higher rate of unusual associations in the Bridge-the-Associative-Gap test than low scorers, and showed poorer inhibition of no longer relevant memory content in the Recent Probes Task. These relationships were independent from individual differences in paranormal belief. Performance in a random generation task (Mittenecker Pointing Test) yielded no support for an important role of a biased concept of randomness in the perception of coincidences. The findings suggest that common mechanisms may underlie the propensity to perceive meaningful coincidences, cognitive looseness, and positive schizotypy.     

Aversive conditioning,schizotypy, and affective temperament in the framework of the salience hypothesis

During classic conditioning, the processing of conditioned stimuli (CSs+) is enhanced relative to neutral stimuli (CSs−). In patients with psychotic disorders, CSs− become abnormally relevant relative to CSs+, which may lead to the formation of aberrant associations. In this study, we explored how schizotypal and affective personality traits are associated with salience processing in nonclinical individuals. We used aversive conditioning and personality questionnaires in 100 healthy volunteers. The CSs+ were colored circles predicting the unconditioned stimulus (US), which was a loud noise. Circles of another color were the CSs− predicting no US. Conditioning was measured with skin conductance responses (SCRs) and reaction time. Results revealed that higher reality distortion, introvertive anhedonia, and cyclothymic personality negatively correlated with SCRs and positively correlated with reaction time for CSs+, which indicates less efficient conditioning. After taking into account the covariance between these personality traits, only reality distortion and introvertive anhedonia remained significant for CS+ SCRs, and introvertive anhedonia remained significant for CS+ reaction time. Enhanced responses to CSs− were positively predicted only by reality distortion. These results suggest that salience-processing biases are related to schizotypal personality traits in healthy individuals, exhibiting a similar pattern to that observed in psychotic disorders.     

An investigation of relationships between teachers' ratings of behavior and children's personality traits

This study examined the relationships between teachers' ratings of children's behavior on the Behavior Problem Checklist and children's selfreported personality source traits on ageappropriate Personality Questionnaires. The sample consisted of 254 children from first through eighth grades and 13 teachers in a rural Maine elementary school. Analysis of the data revealed that teachers' ratings and children's self-reports in grades four through six agreed more frequently about problematic behavior than did children's self-reports and teachers self-ratings in grades one through three and seven and eight. In general, the study (1) supported the validity of teacher judgments made with the Behavior Problem Checklist, (2) demonstrated the ckitical need for more than one perspective when identifying and defining maladaptive behaviors potentially indicative of emotional disturbance, and (3) suggested the need to increase the accuracy of teachers' perceptions and evaluations of children's behavior.     

Loneliness, social relationships, and a broader autism phenotype in college students

Impaired social functioning is a hallmark of autism spectrum conditions. The purpose of this study was to investigate possible relationship between social functioning and a broader autism phenotype. With a sample of non-clinical undergraduate students from a large, urban university (N = 97; mean age = 19.4 ± 2 years), characteristics associated with autism were measured as well as self-reported dating and friendship history, feelings of loneliness, and social motivation. Results indicate that those individuals with a stronger autism phenotype (e.g., rigidity, preference for sameness, high attention to detail) report significantly more loneliness (r = .52, p < 0.01) and fewer and shorter duration friendships. Also, for participants in romantic relationships, a stronger phenotype was moderately and positively correlated with length of relationship (r = .34, p < 0.05). Findings support the view that individuals with characteristics of autism and related conditions do not necessarily prefer aloneness, as once assumed, but rather experience increased levels of loneliness related to lack of social skill and understanding. Significance and limitations of these findings are discussed and future directions for research and possibilities for social skills training in this population are explored.     

An experimental analogue study into the role of abstract thinking in trauma-related rumination

Trauma-related rumination has been shown to predict the maintenance of posttraumatic stress disorder (PTSD). However, it is still unclear how rumination can be distinguished from functional forms of thinking about traumatic events. The current study used an analogue design to experimentally test the hypothesis that the abstractness of thinking is responsible for the dysfunctional effects of trauma-related rumination. Eighty-three healthy university students first watched a distressing video and were then randomly assigned to abstract ruminative thinking, concrete thinking or distraction. Abstract thinking was found to lead to a significantly longer maintenance of negative mood and arousal than both concrete thinking and distraction. These results are in line with earlier findings in the context of excessive worry and depressive rumination and support the view that abstractness is a critical factor for the dysfunctional effects of trauma-related rumination. However, results regarding intrusive memories were not supportive of the hypotheses. Unexpectedly, the distraction group showed the highest number of intrusions, whereas the abstract and concrete conditions did not significantly differ. Implications for theoretical models of trauma-related rumination and possible clinical implications are discussed.