Return of the mental image: are there really pictures in the brain?

In the past decade there has been renewed interest in the study of mental imagery. Emboldened by new findings from neuroscience, many people have revived the idea that mental imagery involves a special format of thought, one that is pictorial in nature. But the evidence and the arguments that exposed deep conceptual and empirical problems in the picture theory over the past 300 years have not gone away. I argue that the new evidence from neural imaging and clinical neuropsychology does little to justify this recidivism because it does not address the format of mental images. I also discuss some reasons why the picture theory is so resistant to counterarguments and suggest ways in which non-pictorial theories might account for the apparent spatial nature of images.     

Bound morpheme loss errors in normal and agrammatic speech: One mechanism or two?

Loss errors involving bound morphemes in normal and agrammatic speech are examined to determine if all errors can be due to a single processing problem. It is concluded that two problems are present. First, there is a general problem with accessing bound morphemes (or forms containing bound morphemes), leading to the production of the base form. Second, there is a syntactic problem involving agreement. In agrammatism, the first problem is differentially exacerbated. Implications for normal and agrammatic speech are examined.     

Morphemic relationships in the lexicon: Are they distinct from semantic and formal relationships?

The influence of morphemic relationships on the repetition priming effect, which is presumed to provide an index of lexical organization, was examined in several experiments. An attempt was made in all experiments to minimize nonlexical contributions to these lexical effects by placing related items in a context of unrelated items. Priming among regularly and irregularly suffixed morphemic relatives, associates, and synonyms was examined. Morphemic relatives and associates yielded significant priming, although priming was largest for regularly suffixed morphemic relatives. Priming was not obtained for synonyms. In previous research (Napps & Fowler, 1987), priming was not found among orthographically and phonologically related words. The results are interpreted to mean that morphemic priming is not the result of the convergence of semantic, orthographic, and phonological relationships, but rather that morphemic relationships are represented explicitly in the lexicon.     

How robust are the deviations in haptic parallelity?

Several studies have shown that physically parallel bars do not feel parallel and vice versa. The most plausible cause of this deviation is the biasing influence of an egocentric reference frame. The aim of the present study was to assess the strength of this egocentric contribution. The deviations from veridicality were measured in six experiments where subjects were presented with either haptic or visual information about parallelity or their deviations. It was found that even direct error feedback (either haptically or visually) did not even nearly result in veridical performance. The improvements found were attributed to a shift in focus towards a more allocentric reference frame, possibly reflecting the same mechanisms as found in delay and noninformative vision studies. We conclude that the illusionary percept of haptic parallelity is rather robust and is indeed caused by a strong reliance on an egocentric reference frame.     

The illusion of mental health: in the mind of which beholder?

We reference self-ratings and clinician ratings of childhood anxious symptoms to a third data source well delineated with regard to the pathophysiology of anxiety. A total of 36 children with anxiety disorders and other children were administered yohimbine, an alpha-sub-2-adrenoreceptor antagonist, in response to which anxiety-prone children have blunted output of growth hormone. We assessed neuroendocrine reactions. In general, participants who claimed anxiety that was unconfirmed by clinicians displayed anxiotypic neuroendocrine profiles, whereas those who denied anxiety detected by clinicians did not, suggesting self-report may have had the advantage over clinician ratings in some instances. Nuanced and contextualized conclusions in this area of work are needed. In response to the question "the illusion of mental health: in the mind of which beholder?," we answer "it depends on the sample and the syndrome under study."     

How important is an apology to you? Forecasting errors in evaluating the value of apologies

Apologies are commonly used to deal with transgressions in relationships. Results to date, however, indicate that the positive effects of apologies vary widely, and the match between people's judgments of apologies and the true value of apologies has not been studied. Building on the affective and behavioral forecasting literature, we predicted that people would overestimate how much they value apologies in reality. Across three experimental studies, our results showed that after having been betrayed by another party (or after imagining this to be the case), people (a) rated the value of an apology much more highly when they imagined receiving an apology than when they actually received an apology and (b) displayed greater trusting behavior when they imagined receiving an apology than when they actually received an apology. These results suggest that people are prone to forecasting errors regarding the effectiveness of an apology and that they tend to overvalue the impact of receiving one.     

How cognitive is psychomotor slowing in depression? evidence from a meta-analysis

Abstract

The current meta-analysis explores the hypothesis that many of the apparently specific deficits that depressed subjects show on speeded cognitive tasks are actually the result of general (i.e., task-independent) slowing. Results of three analyses provided strong support for this hypothesis. the reaction times (RTs) of the depressed groups were consistently slower than those of the control groups. Moreover, the degree of cognitive slowing was approximately the same regardless of the task or condition. Regression analyses revealed a proportional relation between the RTs of the two depressed and control groups, suggesting that depression slows sensory/motor and cognitive processes to approximately the same degree. the regression-based approach used in the present analyses has implications for the study of other neurological disorders and also may have important applications in the assessment of both general and specific cognitive deficits in individual patients.     

Involuntary autobiographical memories in and outside the laboratory: How different are they from voluntary autobiographical memories?

In two studies, we compared the characteristics and retrieval times of involuntary and voluntary autobiographical memory under controlled laboratory conditions. A new laboratory task of involuntary autobiographical memories involved detecting vertical lines in a stream of stimuli with horizontal lines (an undemanding vigilance task) and recording any involuntary memories during the session. The majority of these memories were reported as being triggered by irrelevant cue phrases presented on the screen. Voluntary autobiographical memories were sampled via a standard word-cue method in Session 2. The results showed that involuntary memories were more specific and were retrieved significantly faster than voluntary memories. They were also more likely to be triggered by negative cues, whereas cue valence did not have any effect on the number of voluntary memories. Furthermore, laboratory involuntary memories did not differ from naturalistic involuntary memories recorded in a diary by the same participants (Study 2). Taken together, these results have important implications for current theories of autobiographical memory, and they open up interesting avenues for future research.     

How satisfied are patients with the ministry of chaplains?

The author describes the importance of chaplaincy departments conducting periodic patient satisfaction studies and provides quantitative results from 1440 patients discharged from one of 14 U.S. general hospitals. Patients expressed the most satisfaction in response to the item, "The chaplain seemed to be a person of spiritual sensitivity." The results also suggest the characteristics of patients who appear most responsive to this ministry.     

Production of non-canonical sentences in agrammatic aphasia: limits in representation or rule application?

The study reported here compares two linguistically informed hypotheses on agrammatic sentence production, the TPH [Friedmann, N., & Grodzinsky, Y. (1997). Tense and agreement in agrammatic production: Pruning the syntactic tree. Brain and Language, 56, 397-425.] and the DOP [Bastiaanse, R., & van Zonneveld, R. (2005). Sentence production with verbs of alternating transitivity in agrammatic Broca's aphasia. Journal of Neurolinguistics, 18, 59-66]. To explain impaired production of non-canonical sentences in agrammatism, the TPH basically relies on deleted or pruned clause structure positions in the left periphery, whereas the DOP appeals to limitations in the application of movement rules. Certain non-canonical sentences such as object-questions and object-relative clauses require the availability of nodes in the left periphery as well as movement to these nodes. In languages with relatively fixed word order such as English, the relevant test cases generally involve a coincidence of left periphery and movement, such that the predictions of the TPH and the DOP are identical although for different reasons. In languages with relatively free word order such as German, on the other hand, it is possible to devise specific tests of the different predictions due to the availability of scrambling. Scrambled object sentences, for example, do not involve the left periphery but do require application of movement in a domain below the left periphery. A study was conducted with German agrammatic subjects which elicited canonical sentences without object movement and non-canonical scrambled sentences with object movement. The results show that agrammatic speakers have a particular problem with the production of scrambled sentences. Further evidence reported in the study from spontaneous speech, elicitation of object relatives, questions and passives and with different agrammatic subjects confirms that non-canonical sentences are generally harder to produce for agrammatics. These findings provide evidence in favor of the DOP and it will be argued that a cross-modal explanation of agrammatic deficits is possible if two factors--movement and canonicity--are taken into consideration.     

Where did the ventricular localization of mental faculties come from?

During the Middle Ages it was widely believed that the various mental faculties-sensation, cognition, memory, and so forth-were each located in a specific part of the three ventricles that were thought to be housed in the brain. The origin of this scheme was commonly attributed to the ancient scholars, but it was rare for a specific individual to be identified as the originator. Modern researchers sometimes attribute it to Galen, but Galen was clear in his contention that the mental faculties were located in the substance of the brain rather than in the ventricles. It was only later scholars who, using Galen's anatomy as their basis, placed the mental faculties in the ventricles themselves. The system came together piece by piece over a period of centuries, probably not appearing fully in the form known to the Medieval world until the Middle Ages themselves. This article traces the development of the theory of ventricular localization of the mental faculties from the Ancient world to the early part of the Middle Ages.     

What are the values of young people and how are these different from the values of older generations in Georgia?

This article examines the basic values of young people (aged 18 to 25) and analyses how, if at all, these are different from the values of older generations in Georgia. Based on Shalom H. Schwartz’s Theory of Basic Values (2012), the study uses quantitative (secondary analysis of the World Values Survey [WVS]) and qualitative (40 in-depth interviews) research methods to explore basic values, perceptions and attitudes, as well as tolerance towards different minority groups in Georgia. The research findings reveal that Schwartz’s higher-ordered values ‘conservation’ (including ‘conformity’ and ‘tradition’) and ‘self-transcendence’ (including ‘benevolence’ and ‘universalism’) are very important for all age groups in Georgia. In contrast, the values of ‘openness to change’ and ‘self-enhancement’ are assessed quite dissimilarly by young and older generations. In addition, the youth turned out to be more tolerant towards different minority groups, such as people of a different religion and race, immigrants and sexual minorities.     

How are false memories distinguishable from true memories in the Deese–Roediger–McDermott paradigm? A review of the findings

This article reviewed the literature comparing true and false memories. Although false memory experience is typically characterized as compellingly similar to true memory experience, research also indicates many distinctions between these two types of memory. The primary focus of this article was on comparing these two types of memory in the Deese–Roediger–McDermott paradigm on a number of independent and dependent measures. Studies that compared true and false memories in recall and recognition rates over retention intervals, as a function of list word presentation duration, list presentation repetition, in recall and recognition latencies, output serial position, phenomenological experiences (conscious and unconscious discrimination between these two types of memories), and neurophysiological processes were reviewed. The conclusion is that the degree to which false memory is experienced and observed as similar to or the same as true memory is a function of a number of variables in the process of acquiring and measuring the memory.     

Brief report: How many dimensions in the prosocial behavior scale? Psychometric investigation in French-speaking adolescents

The purpose of the study was to evaluate the factor structure and the reliability of the Prosocial Behavior Scale (PBS). To our knowledge, no factorial validity of the multifactorial structure of PBS has been published to date. The psychometric characteristics of the PBS were examined in several samples of French adolescents (aged 11–19, N1 = 1141, N2 = 1071, and N3 = 1640) using Confirmatory factor analyses (CFA). The original four-factor structure was not confirmed due to lack of discriminant validity. CFA led us to retain a two-factor solution with a good fit and a satisfactory reliability. Furthermore, the results support the convergent validity of the PBS: helping and caring dimensions were positively correlated with empathy. In addition, partial measurement invariance across gender and grade was attested. In conclusion, the results indicate that the French version of the PBS is a useful instrument for the assessment of prosocial behaviors in adolescence.     

How similar are the changes in neural activity resulting from mindfulness practice in contrast to spiritual practice?

Meditation and spiritual practices are conceptually similar, eliciting similar subjective experiences, and both appear to provide similar benefits to the practicing individuals. However, no research has examined whether the mechanism of action leading to the beneficial effects is similar in both practices. This review examines the neuroimaging research that has focused on groups of meditating individuals, groups who engage in religious/spiritual practices, and research that has examined groups who perform both practices together, in an attempt to assess whether this may be the case. Differences in the balance of activity between the parietal and prefrontal cortical activation were found between the three groups. A relative prefrontal increase was reflective of mindfulness, which related to decreased anxiety and improved well-being. A relative decrease in activation of the parietal cortex, specifically the inferior parietal cortex, appears to be reflective of spiritual belief, whether within the context of meditation or not. Because mindful and spiritual practices differ in focus regarding the ‘self’ or ‘other’ (higher being), these observations about neurological components that reflect spirituality may continue work towards understanding how the definition of ‘self’ and ‘other’ is represented in the brain, and how this may be reflected in behaviour. Future research can begin to use cohorts of participants in mindfulness studies which are controlled for using the variable of spirituality to explicitly examine how functional and structural similarities and differences may arise.     

Stimulus/response learning in masked congruency priming of faces: evidence for covert mental classifications?

Reaction times for categorization of a probe face according to its sex or fame were contrasted as a function of whether the category of a preceding, sandwich-masked prime face was congruent or incongruent. Prime awareness was measured by the ability to later categorize the primes, and this was close to chance and typically uncorrelated with priming. When prime faces were never presented as visible probes within a test, priming was not reliable; when prime faces were also seen as probes, priming was only reliable if visible and masked presentation of faces were interleaved (not simply if primes had been visible in a previous session). In the latter case, priming was independent of experimentally induced face-response or face-category contingencies, ruling out any simple form of stimulus-response learning. We conclude that the reliable masked congruency priming reflects bindings between stimuli and multiple, abstract classifications that can be generated both overtly and covertly.     

Directional bias in the mental representation of spatial events: nature or culture?

Previous research has shown a tendency for people to imagine simple sentences as evolving from left to right, with the sentence subject being located to the left of the object. In two cross-cultural studies comparing Italian and Arab participants, we investigated whether this bias is a function of hemispheric specialization or of directionality of written language (left to right in Italian, right to left in Arabic). Both studies found a reversal of directional bias in Arabs. Italians tended to position the subject to the left of the object, and Arabs tended to position the subject to the right of the object (Experiment 1); both groups were facilitated in a sentence-picture matching task when the subject was drawn in the position that it would usually occupy in the written language (left for Italians, right for Arabs; Experiment 2). In Experiment 2, an additional, language-independent facilitation was observed when action evolved from left to right, suggesting that both hemispheric specialization and scanning habit affect visual imaging.