Between automatic and control processes: How relationships between problem elements interact to facilitate or impede insight

Solving a problem requires relating the pieces of information available to each other and to the solution. We investigated how the strength of these relationships determines the likelihood of solving insight tasks based on remote associates. In these tasks, the solver is provided with several cues (e.g. drop, coat, summer) and has to find the solution that matches those cues (e.g., rain). We measured the semantic similarity between the cues and the solution (cue-solution similarity) as well as between cues (cue-cue similarity). We assume those relationships modulate two basic processes underlying insight problem solving. First, there is an automatic activation process whereby conceptual activation spreads across a semantic network from each cue node to their associated nodes, potentially reaching the node of the solution. Thus, in general, the higher cue-solution similarity, the more likely the solution will be found (Prediction1). Second, there is a controlled search process focused on an area in semantic space whose radius depends on competing cue-cue similarity. High cue-cue similarity will bias a search for the solution close to the provided cues because the associated nodes shared by both cues are highly co-activated. Therefore, high cue-cue similarity will have a beneficial effect when the cue-solution similarity is high but a detrimental effect when cue-solution similarity is low (Prediction2). Our two predictions were confirmed using both verbal and pictorial remote association tasks, supporting the view that insight is dependent on meaningful relationships between cues and solutions, and clarify the mechanisms of insight problem solving in remote associates.

Visual-Spatial and Verbal Remote Association: An fMRI Study

Although idea connections at verbal and conceptual levels have been explored by remote associates tests, the visual-spatial level is much less researched. This study investigated the visual-spatial ability via Chinese Radical Remote Associates Test (CRRAT), wherein respondents consider the positions of the stimulus and target Chinese radicals. Chinese Compound Remote Associates Test (CCRAT) questions also feature stimuli of a single Chinese character; therefore, it was adopted for comparison to distinguish the roles played by verbal and visual-spatial associations in a remote associative process. Thirty-six adults responded to CRRAT and CCRAT; their brain activities were analyzed. Upon excluding the influence of age, verbal comprehension, and working memory, it was found that the caudate, posterior cingulate cortex, postcentral gyrus, and medial frontal gyrus were activated when the respondents answered CCRAT, but only the caudate showed significant activation when they answered CRRAT. The Chinese radical remote association minus the Chinese compound remote association showed that the middle frontal gyrus, inferior parietal lobule, and precuneus demonstrated significant activation. Therefore, this study demonstrated differences in brain mechanisms between visual-spatial and verbal remote associations.

Multicultural experience and multilingualism as predictors of creativity

Aims and objectives: Past research has shown that multicultural experience and multilingualism can be positively associated with creativity. However, very few studies have focused simultaneously on all these variables. Our aim is to consider both sets of predictors simultaneously, clarifying whether the impact of these variables on creativity is cumulative or redundant. Design/methodology/approach: The design combines correlational and quasi-experimental approaches. It is also strongly multivariate and includes various measurement methods. Variables of interest were assessed with questionnaires ( N = 596) and creativity tasks ( N = 174) in laboratory settings. The scope of the study, therefore, is relatively large and encompasses several indicators. Data and analysis: We use multiple regressions with latent and manifest variables. Latent variables were constructed for all sets of key predictors (multilingualism, traveling experience, living abroad experience); predictors were regressed on four types of creativity variables, also latent in most cases (creative potential; creative interests, activities, and achievements; creative performance in a writing task; creative performance on a remote association task). Findings/conclusions: Results shows that both multicultural experience and multilingualism are positively related with various manifestations of creativity. Overall, the results indicate complementary effects of multicultural experience and multilingualism on creativity. The most robust predictors are multilingualism and variables representing deep immersion in foreign countries. Originality: Three features make this study unique: (a) it examines both multilingualism and multiculturalism; (b) the sample population is broader than in most studies, which often focus on migrant populations; and (c) it implements a multimethod operationalization of creativity. Significance/implications: The paper goes beyond received approaches to the link between human diversity and creativity; the analysis is put in relation with other research work that focuses on policy implications for diversity, particularly in the areas of bilingualism and bicultural identity. Implications regarding the connections between creativity, multilingualism, and general executive functioning are also discussed.

My Cat and Me—A Study of Cat Owner Perceptions of Their Bond and Relationship

Cats form close emotional relationships with humans, yet little is known about this. This study characterized different types of relationship that cats might establish with their owners. Data were analyzed from 3994 responses to a questionnaire developed using expressions of social support and attachment in relation to everyday cat–owner interactions. Principal component analysis reduced the items to four factors: the “owner’s emotional investment in the cat”, “cat’s acceptance of others”, “cat’s need for owner proximity” and “cat’s aloofness”. Cluster identified three groups of owners with two of these each sub-divided into two. The “open relationship bond” was characterized by a lightly emotionally invested owner and an avoidant cat. The “remote association” and “casual relationship” were characterized by an emotionally remote owner but differed in the cat’s acceptance of others. The “co-dependent” and “friendship” relationship were characterized by an emotionally invested owner but differed in the cat’s acceptance of others and need to maintain owner proximity. In conclusion, as with any complex social relationship, the type of cat–owner bond that develops is the product of the dynamic that exists between both the individuals involved, along with certain personality features, of which, the wider sociability of the cat and owner expectations may be particularly important.

Analysis of English free association network reveals mechanisms of efficient solution of Remote Association Tests

We study correlations between the structure and properties of a free association network of the English language, and solutions of psycholinguistic Remote Association Tests (RATs). We show that average hardness of individual RATs is largely determined by relative positions of test words (stimuli and response) on the free association network. We argue that the solution of RATs can be interpreted as a first passage search problem on a network whose vertices are words and links are associations between words. We propose different heuristic search algorithms and demonstrate that in “easily-solving” RATs (those that are solved in 15 seconds by more than 64% subjects) the solution is governed by “strong” network links (i.e. strong associations) directly connecting stimuli and response, and thus the efficient strategy consist in activating such strong links. In turn, the most efficient mechanism of solving medium and hard RATs consists of preferentially following sequence of “moderately weak” associations.

EEG and fMRI Correlates of Insight: A Pilot Study

Insight is described as the sudden solution of a problem and is contrasted with an analytical, step-by-step approach. Traditionally, insight is thought to be associated with activity of the right hemisphere, whereas analytical solutions are thought to be associated with activity of the left hemisphere. However, empirical evidence as to the localization of insight-related brain activity is mixed and inconclusive. Some studies seem to confirm the traditional view, whereas others do not. Moreover, results of EEG and fMRI studies frequently contradict each other. In this study, EEG and fMRI data were recorded while subjects performed the remote association test and for each solved problem were asked to report whether the solution was reached analytically or insightfully. The data were analyzed in a 16-second fragment preceding the subject’s response. Source localization techniques were used in the analysis of EEG data. Based on EEG data, insightful as compared to analytical problem solving was accompanied by high-frequency synchronization in semantic cortical areas of the left hemisphere 10–12 s before the subject’s response. Based on fMRI data, however, insightful solutions were accompanied by increased activity in frontal and temporal regions of the right hemisphere. The results are interpreted in terms of different cognitive processes involved in insightful problem solving, which could be differently reflected in EEG and fMRI data.

The Impact of Writing on Academic Performance for Medical Students

Background Since the 1970s, writing has been widely used in classroom settings. Writing enhances learning, but there are limited studies that prove its effectiveness, especially in the medical education setting. The purpose of this study, therefore, is to investigate the effect of writing on medical students’ academic performance. Methods An experiment was conducted with 139 medical students from Seoul National University College of Medicine. They were randomly assigned to three different groups: self-study (SS), expository writing (EW), and argumentative writing (AW) group. Each group studied the given material by the method they were assigned, and they were tested on their understanding and transfer of knowledge. We also tested students’ higher-order thinking ability using Remote Association Test (RAT). Results The results showed that the writing groups displayed better performance than the SS group in transfer type items, while there was no difference in scores between the EW and AW group. The three groups did not show any difference in rote-memory type items, but RAT scores have a positive correlation with rote-memory scores. Conclusions This study provides empirical evidence for writing to be adopted in classrooms for greater educational benefits, especially in medical education. These findings indicate that writing can enhance learning and higher-order thinking, which are critical for medical students.

Incubation Research: Potential of Within Subject and Between Subject Experimental Design

In the current work we aimed to detect the incubation effect using between-subject and within-subject design. We compared the performance rate of solving Remote Association Test in incubation (with a break) and no-incubation conditions. During the incubation phase participants were listening to the audio record of the science-fiction novel. No significant differences were found in the performance level in incubation and no-incubation conditions, neither in within-group nor in the between-group tests. Nonetheless we found the indirect indicators of the processes that are encountered during the incubation period. The discrepancy in the absence of raw performance indicators of incubation on the one hand, and the presence of the difficulty indicators changes on another hand, is discussed in the context of the activation paradigm and the model of awareness of implicit solution.

Environmental cadmium exposure: a possible factor in the pathogenesis of preeclampsia

Cadmium is a toxic metal, an environmental contaminant and a multi-organ poison which has been implicated in the derangement of a number of biological and molecular systems. Exposure to cadmium is a serious global health threat particularly in developing countries and pregnant women are at great risk, This is because they have increased gastrointestinal absorption and retention of cadmium and the tendency for increased risk of complications owing to its toxic effects. Preeclampsia is a pregnancy complication characterized by the development of onset of hypertension and significant proteinuria after 20 weeks of gestation or during labour and/or within 48 hours of delivery. This pregnancy-specific syndrome is a leading cause of maternal death particularly in developing countries. Several reports have provided evidence of remote association between preeclampsia and cadmium but the mechanism of the involment of this toxic metal in this disease is still surrounded with uncertainty. Some possible mechanistic pathways such as induction of oxidative stress, acting as an antimetabolite to zinc and deregulation of epigenetic mechanisms have been elucidated in this article may be interconnected, work synergistically or act independently. However, pertinent to understand them in a bid to possibly prevent the disease or forestall its devastating consequences. Environmental cadmium exposure may be considered a factor that merits further serious attention in the continuous search for the precise an etiology of preeclampsia particularly in developing countries that experience uncontrolled cadmium release into the environment.

A Manifestation of Cloud Computing Environments for Application Clusters, High-Performance Clusters and Allocation strategies for Virtual Machines

Cloud Computing (CC) is the advancement of the Grid Computing (GC) worldview in the direction of administration arranged structures. The phrasing connected to this sort of handling, while portraying shared resources, alludes to the idea of Service of X. Such assets are accessible on interest and at an altogether low cost contrasted with self-conveyance of individual segments. CC is found everywhere in current situations, from vast scale associations to a just little scale business, everybody is equipping themselves cloud. Due to its effortlessness, observing and support over remote association, expansive territory inclusion. Cloud can be any sort Software as an administration, stage as an administration, foundation as an administration dependent on its use. High Performance Computing (HIPECO) implies the accumulation of computational capacity to build the capacity of handling substantial issues in science, designing, and business. HIPECO on the cloud permits performing on interest HIPECO errands by superior clusters in a cloud atmosphere. Currently, CC arrangements (e.g., Microsoft Azure, Amazon EC2) enable the users to make use of only the fundamental storage and computational utilities. They prevent the allowance of custom adjustments of the topology designs or parameters of the system. The associations structures of the nodes in HIPECO clusters ought to give a quick bury node correspondence. It is vital that adaptability is safeguarded also. In a foundation, as an administration, virtualization viably maps virtual machines to the physical machines. In spite of the fact that it is difficult, undertaking for hypervisor to choose fitting host to serve up and coming virtual machine is a must requirement. In this paper, our main aim is to examine different techniques/types of cluster topology mapping and their necessities in numerous Cloud situations to accomplish higher dependability along with adaptability of utilization which is executed inside Cloud resources (CR), HIPECO resource allocation (RA) on the cloud clusters and Cluster based designation procedure.