External analysis with three-mode principal component models

Through external analysis of two-mode data one attempts to map the elements of one mode (e.g., attributes) as vectors in a fixed space of the elements of the other mode (e.g., stimuli). This type of analysis is extended to three-mode data, for instance, when the ratings are made by more individuals. It is described how alternating least squares algorithms for three-mode principal component analysis (PCA) are adapted to enable external analysis, and it is demonstrated that these techniques are useful for exploring differences in the individuals' mappings of the attribute vectors in the fixed stimulus space. Conditions are described under which individual differences may be ignored. External three-mode PCA is illustrated with data from a person perception experiment, designed after two studies by Rosenberg and his associates whose results were used as external information.We gratefully acknowledge the assistance of Piet Brouwer in implementing the external analysis options in the TUCKALS programs.     

Asymmetrical learning between a tactile and visual serial RT task

According to many researchers, implicit learning in the serial reaction-time task is predominantly motor based and therefore should be independent of stimulus modality. Previous research on the task, however, has focused almost completely on the visual domain. Here we investigated sequence learning when the imperative stimuli were presented tactilely to the fingers. Learning in this task was compared to sequence learning in a typical visual task, using very similar experimental conditions. The results indicate that sequential learning occurs in the tactile task, though to a lesser degree than in its visual counterpart. Furthermore, there was similar cross-modal transfer in both directions, meaning that transfer from the visual to the tactile task was partial. It is proposed that sequence learning involves a stimulus-specific component in the visual but not in the tactile task.     

Imagine There Is a War and No One Turns Up! A Response to the Commentaries

In this response to the commentaries, we make one concession and try to clarify two critical points raised by the commentators. The concession is about the common stock of knowledge on which social representations approaches draw in general, and the model outlined in our article in particular. The two points we attempt to clarify concern the importance of both an intergroup perspective and of the structural components of power to our model of social representations.     

Narcissistic Personality Disorder as an Intrapsychic Trajectory to Real Self-Love: A Case Report

The intrapsychic mechanism of remission in a forensic psychiatric patient with narcissistic personality disorder and comorbid antisocial features is examined. The positive impact of a therapeutic and academic program on the patient’s development and recovery and correlated increase of true self-love is analyzed and discussed. Real self-love appeared to be associated with stable selfesteem and enhancement of self-insight, authenticity, and reality testing capacities.     

Specific Psychosocial Issues of Individuals Undergoing Genetic Counseling for Cancer – A Literature Review

Approximately 25 % of individuals undergoing genetic counseling for cancer experiences clinically relevant levels of distress, anxiety and/or depression. However, these general psychological outcomes that are used in many studies do not provide detailed information on the specific psychosocial problems experienced by counselees. The aim of this review was to investigate the specific psychosocial issues encountered by individuals undergoing genetic counseling for cancer, and to identify overarching themes across these issues. A literature search was performed, using four electronic databases (PubMed, PsychInfo, CINAHL and Embase). Papers published between January 2000 and January 2013 were selected using combinations, and related indexing terms of the keywords: ‘genetic counseling’, ‘psychology’ and ‘cancer’. In total, 25 articles met our inclusion criteria. We identified the specific issues addressed by these papers, and used meta-ethnography to identify the following six overarching themes: coping with cancer risk, practical issues, family issues, children-related issues, living with cancer, and emotions. A large overlap in the specific issues and themes was found between these studies, suggesting that research on specific psychosocial problems within genetic counseling has reached a point of saturation. As a next step, efforts should be made to detect and monitor these problems of counselees at an early stage within the genetic counseling process.     

Semantic distance effects on object and action naming

Graded interference effects were tested in a naming task, in parallel for objects and actions. Participants named either object or action pictures presented in the context of other pictures (blocks) that were either semantically very similar, or somewhat semantically similar or semantically dissimilar. We found that naming latencies for both object and action words were modulated by the semantic similarity between the exemplars in each block, providing evidence in both domains of graded semantic effects.     

Competition, cooperation, and the effects of others on me

Four studies were conducted to test the notion that whether one competes against or cooperates with a comparison target can serve as an important determinant of the direction (contrast or assimilation) of self-evaluative social comparison effects. In Study 1, cooperative-competitive orientation was treated as an individual difference variable, and it was shown that social comparison led to contrast for individuals with a more competitive orientation, whereas assimilation occurred for individuals with a more cooperative orientation. Study 2 replicated this result, treating cooperative-competitive orientation as a contextual variable. In Study 3, it was demonstrated that to obtain this pattern of results it is not necessary for perceivers to believe that they will be either competing or cooperating with the comparison target. Simply activating the relevant concepts is sufficient. The final studies demonstrated that competition activates a "difference" focus and cooperation activates a "similarity" focus.     

Effector dependent sequence learning in the serial RT task

At least five earlier studies could not find effector-dependent learning in the keying version of the serial reaction time (RT) task. Experiment 1 examined whether effector-dependent learning occurs when participants practice the serial RT task with three fingers of one hand for about 1,300 sequence repetitions instead of the more common 50-100 repetitions. The results confirm that, following extended practice, sequence learning produces an effector-dependent component. Specifically, an unpracticed hand executed a practiced sequence slower than a practiced hand. However, Experiment 2 showed that effector-dependent sequence learning develops only when fingers of one hand are used, suggesting that effector-dependent sequence learning involves adjustment to the mechanical interactions between the fingers of one hand. In addition, when sequences had been practiced with one hand, mirror versions of the practiced sequences in both experiments showed moderate transfer. But when practiced with two hands no transfer to a mirrored version of the sequence was observed. This suggests that only practice with one hand produces a representation that facilitates the execution of mirror sequences. Generally, the same results were found in more or less aware participants, congruent with the idea that the effector-dependent representation and the representation allowing transfer to mirror sequences are implicit.