Development of visuomanual tracking in 5- to 9-year-old boys

Visuomanual sinusoidal tracking is investigated in 5- to 9-year-old children. The proportion of successful performances steadily increases with age, but adult proficiency is never attained even by those who can perform the task. Moreover, the progress in proficiency—as measured by systems analysis techniques—is not monotonic and suggests the presence of distinct stages in the development of visuomotor coordination. Qualitative analysis of unsuccessful performance demonstrates that failures cannot be ascribed only to insufficient motor coordination and emphasizes the role of cognitive and representational factors even in such a simple task.     

Metacognitive Interpersonal Therapy for Treating Auditory Verbal Hallucinations in First-onset Schizophrenia

Auditory verbal hallucinations (AVHs) are perceptive-like experiences happening without appropriate stimuli, occurring in two thirds of schizophrenia patients, where they often cause emotional suffering and dangerous behaviors, and interfere with social relationships. Patients with schizophrenia involving AVHs can also be drug-resistant or they may discontinue medications. The most well-known psychotherapeutic intervention for voice-hearing is cognitive behavioral therapy (CBT), which focuses on reducing distress by modifying hearers’ beliefs about their voices. We hypothesize that it is possible to reinforce the clinical approach to AVHs by taking into consideration (a) that patients generally hear voices in particular interpersonal contexts where they experience negative emotions; (b) the relationship between AVHs and metacognition, namely the ability to make sense of mental states. On this basis, AVHs can be seen not just as a cause of emotional distress as CBT postulates, but the outcome of difficulties in meta-cognitively making sense of interpersonal exchanges. In this paper, we describe the treatment of a young man at the onset of schizophrenia with pervasive negative AVHs. The patient was treated with metacognitive interpersonal therapy (MIT), aimed to promote the patient’s metacognition. With this aim, in the first part of the treatment, each time AVHs emerged, the patient’s level of arousal was high and his metacognitive ability very low, the therapist treated AVHs helping the patient to understand and cope with the emotional suffering connected with AVHs. At a more advanced stage of therapy, the therapist helped the patient reach the point of understanding the social triggers which, together with the patient’s self-schemas, ignited his auditory hallucinations; this created the conditions for a significant reduction of the pervasiveness of AVHs.     

Semantic relationism, belief reports and contradiction

In his book Semantic Relationism, Kit Fine propounds an original and sophisticated semantic theory called ‘semantic relationism’ or ‘relational semantics’, whose peculiarity is the enrichment of Kaplan’s, Salmon’s and Soames’ Russellian semantics (more specifically, the semantic content of simple sentences and the truth-conditions of belief reports) with coordination, “the very strongest relation of synonymy or being semantically the same”. In this paper, my goal is to shed light on an undesirable result of semantic relationism: a report like “Tom believes that Cicero is bald and Tom does not believe that Tully is bald” is correct according to Fine’s provided truth-conditions of belief reports, but its semantic content is (very likely) a contradiction. As I will argue in the paper, even the resort to the notion of token proposition, introduced in Fine’s recent article “Comments on Scott Soames’ ‘Coordination Problems’”, does not suffice to convincingly eliminate the contradiction; moreover, it raises new difficulties.     

Correction to: Religiosity and Health-Related Quality of Life: A Cross-Sectional Study on Filipino Christian Hemodialysis Patients

Journal of Religion and Health - The authors regret that the following error occurred in the original publication of the article. The corrected text has been presented with this erratum. In the...     

Do chimpanzees anticipate an object’s weight? A field experiment on the kinematics of hammer-lifting movements in the nut-cracking Taï chimpanzees

When humans are about to manipulate an object, our brains use visual cues to recall an internal representation to predict its weight and scale the lifting force accordingly. Such a long-term force profile, formed through repeated experiences with similar objects, has been proposed to improve manipulative performance. Skillful object manipulation is crucial for many animals, particularly those that rely on tools for foraging. However, despite enduring interest in tool use in non-human animals, there has been very little investigation of their ability to form an expectation about an object’s weight. In this study, we tested whether wild chimpanzees use long-term force profiles to anticipate the weight of a nut-cracking hammer from its size. To this end, we conducted a field experiment presenting chimpanzees with natural wooden hammers and artificially hollowed, lighter hammers of the same size and external appearance. We used calibrated videos from camera traps to extract kinematic parameters of lifting movements. We found that, when lacking previous experience, chimpanzees lifted hollowed hammers with a higher acceleration than natural hammers (overshoot effect). After using a hammer to crack open one nut, chimpanzees tuned down the lifting acceleration for the hollowed hammers, but continued lifting natural hammers with the same acceleration. Our results show that chimpanzees anticipate the weight of an object using long-term force profiles and suggest that, similarly to humans, they use internal representations of weight to plan their lifting movements.     

Theory of mind and joint action in Parkinson’s disease

It has been suggested that the Theory of Mind (ToM) may rely on more basic processes of social cognition, such as action control (e.g., joint action), even if little is known about this relationship. The relationship between ToM and joint action can be studied in patients with Parkinson’s disease (PD), because they are characterized not only by a deficit in ToM (and in its cognitive and affective subcomponents) but also by a deficit in the inhibition of competing responses. Sixty PD patients and 60 matched healthy controls (HCs) performed a go/no-go Flanker task in both joint and individual conditions. Cognitive (Advanced Test or AT) and affective (Emotion Attribution Task or EAT) ToM also were measured. Thirty-five PD patients and matched HCs also performed the standard Flanker task, as a control measure. In patients, only individuals with high AT scores exhibited a joint Flanker effect, whereas in HCs the joint effect was found irrespectively of AT score. Patients with low EAT scores showed a greater interference effect than patients with high scores, whereas the opposite pattern was found for HCs. In regression analysis AT and EAT scores predicted the Flanker effect in the joint condition only. In the standard task, both groups showed a Flanker effect. The role of different fronto-striatal circuits, especially in PD patients, could explain the different involvement of cognitive and affective ToM in joint tasks. The Flanker effect is discussed considering the referential coding account and the attention-focus account as possible candidates to explain joint action effects.     

Attentional orienting and awareness: evidence from a discrimination task

We used several cue–target SOAs (100, 500, 1000 ms) and three different degrees of cue predictability (Non-predictive-50%, Predictive-75%, Counter-predictive-25%), to investigate the role of awareness of cue–target predictability on cueing effects. A group of participants received instructions about the informative value of the cue, while another group did not receive such instructions. Participants were able to extract the predictive value of a spatially peripheral cue and use it to orient attention, whether or not specific instructions about the predictive value of the cue were given, and no matter their ability to correctly report it in a post-test questionnaire. In the non-predictive block, bad estimators who received no instructions showed regular cueing effects, while good estimators exhibited smaller and non-significant facilitatory effects at the short SOA and an absence of significant IOR at longer SOAs. However, for the instructions group, the pattern of results reversed.     

Spatial attention and conscious perception: the role of endogenous and exogenous orienting

Attention has often been considered to be a gateway to consciousness (Posner, Proceedings of the National Academy of Sciences of the United States of America, 91(16), 7398–7403, 1994). However, its relationship with conscious perception (CP) remains highly controversial. While theoretical models and experimental data support the role of attention in CP (Chica, Lasaponara, Lupiáñez, Doricchi, &; Bartolomeo, NeuroImage, 51, 1205–1212, 2010; Dehaene, Changeux, Naccache, Sackur, &; Sergent, Trends in Cognitive Sciences, 10, 204–211, 2006; Mack &; Rock, Inattentional blindness, 1998), recent studies have claimed that at least some forms of attention—endogenous or top-down spatial attention—are neither sufficient nor necessary for CP (Koch &; Tsuchiya, Trends in Cognitive Sciences, 11, 16–22, 2007). In the present experiments, we demonstrate the importance of exogenously triggered attention for the modulation of CP. Weak or null effects were instead observed when attention was triggered endogenously. Our data are discussed in the framework of recent neuropsychological models (Dehaene et al., Trends in Cognitive Sciences, 10, 204–211, 2006), postulating that activity within reverberating frontoparietal networks, as colocalized with spatial--orienting systems, is the brain correlate of consciously processed information.     

Temperament and Character Inventory-R (TCI-R) and Big Five Questionnaire (BFQ): convergence and divergence

This study evaluated the correspondence between measures of two competing theories of personality, the five-factor model as measured by the Big Five Questionnaire (BFQ), and Cloninger's psychobiological theory measured by the Temperament and Character Inventory-Revised (TCI-R). A sample of 900 Italian participants, balanced with respect to sex (393 men and 507 women), and representative of the adult population with respect to age (range 18 to 70 years; M = 39.6, SD = 15.7) completed the TCI-R and the Big Five Questionnaire. All TCI-R personality dimensions except Self-Transcendence were moderately correlated with one or more of the Big Five dimensions (from r = .40 to .61), and the two instruments showed areas of convergence. However, the differences outweighed the similarities, indicating that these current conceptualizations and measures of personality are somewhat inconsistent with each other.     

The rise and fall of the Pacquiao Effect: Contrastive priming and national identification

We demonstrate in a series of field and controlled experiments that assimilative and contrastive priming effects can be observed in the pattern of self‐concept change in response to a major cultural event. Study 1 used the brief implicit association test (BIAT) to measure national identification of Filipinos online across a period of time that encompassed a national sporting event. The pattern of scores support the hypothesis that while people who were ambivalent about identifying with Filipino concepts exhibited an assimilation effect (i.e. a slight rise in identification after the fight), people who already highly identified with being Filipino experienced a contrast effect (i.e. a slight drop in identification). Study 2 replicated this result five months later with a new sample and ruled out several possible alternative hypotheses. A subsequent controlled experiment and a qualitative investigation consistently supported the hypothesis that the pattern observed in the previous studies is more consistent with assimilative and contrastive priming effects rather than disidentification.