BRIEF REPORT Set‐shifting and sensitivity to reward: A possible dopamine mechanism for explaining disinhibitory disorders

The objective of this study was to investigate personality correlates of set‐shifting behaviour using a task sensitive to dopaminergic activity. As expected, set‐shifting behaviour was positively correlated with scores on the Sensitivity to Reward scale, a measure of Gray's impulsivity. Discussion is focused on the relationship between this greater ability for set‐shifting and the proneness to disinhibition.     

Relative importance of perceptual and mnemonic variance in human temporal bisection

We investigated the relative contributions of perception and reference memory to behavioural variability in a temporal discrimination with human subjects. We used two temporal bisection tasks. In both tasks each trial consisted of a sequential presentation of three intervals, two standards, and a probe, and subjects were asked to judge the similarity of each probe against the two standards. In a "single bisection", the standards' duration was constant across trials. In a "roving bisection", the two standards were trial unique. We compared our results with the predictions from a model related to Scalar Expectancy Theory, with the added assumption that the decision process minimizes the expected number of errors given the information available. The model shows that if errors in reference memory were dominant the psychometric function should be identical for single and roving tasks, and if perceptual errors were dominant the psychometric function should be steeper for the single than for the roving bisection. As we found that psychometric functions were steeper for the single than for the roving tasks, we concluded that perceptual errors are dominant.     

Return to Sepharad: Is it possible to heal an ancient wound? A reflection on the construction of large-group identity

Abstract

Spanish parliament recently issued a new law offering Spanish nationality to Sephardic Jews who so desired and could demonstrate a basic knowledge of the Spanish language and culture. This law attempted to redress a five-centuries-old injustice and was expected to unleash both criticism and praise. Surprisingly, reactions in the public or the press were minimal or absent. Reasons for this are explored through a qualitative study with focus groups, which showed ideas that can be grouped into four main categories: ignorance, justice, distrust, and fear. It is hypothesized that the predominantly silent response to the new law might be due to the fact that it touches on an extremely sensible issue: the historically fragmented Spanish identity. A position of negation is constructed, to avoid deep anxieties related to the fragile core of a collective identity built from many “others” forced to the refuge of an introspection that protects them from the conviction of not fulfiling the ideal identity status, known by all but reached by none. All those “others” have mixed their bloods with the Old Christians along the centuries, possibly transmitting a profound insecurity about their personal and collective identity that might contribute to understanding current social reactions.     

Drop it like it’s HOT: a vicious regress for higher-order thought theories

Higher-order thought (HOT) theories of consciousness attempt to explain what it takes for a mental state to be conscious, rather than unconscious, by means of a HOT that represents oneself as being in the state in question. Rosenthal (in: Liu, Perry (eds) Consciousness and the self: new essays, Cambridge University Press, Cambridge, 2011) stresses that the way we are aware of our own conscious states requires essentially indexical self-reference. The challenge for defenders of HOT theories is to show that there is a way to explain the required reference-fixing mechanisms that is compatible with the theory. According to Rosenthal, the reference to oneself as such is grounded in the disposition to identify the individual the HOT refers to as the individual who has that HOT. I argue that this leads to a vicious infinite regress on the more than plausible assumption that our cognitive capacities are limited. This leaves such theories without a foundation, since self-reference is thought essential to consciousness.

     

David and Goliath: What If He Loses?

ABSTRACT

Infant’s volition has not been explored in healthy development. Our research conducted on the environmental response to infant’s initiatives (Hoffmann, Popbla, and Duhalde, 1998) shows that maternal attitude has a direct correlation with successful development of initiatives in infants aged 4 to 12 months, having implications for the capacities of infants to unfold as much as endowments allow. The opposite also is true. Infants who are more thwarted in the development of their potential initiatives show greater reactivity and conflict in early relationships with the caregiver, impacting the development of a healthy self. These claims will be discussed with proposals made in recent decades by some authors who have focused on the coming together of a self in the first year of life. The ramifications of this early start in one’s life can be credited to Lou Sander, whom we honor in this issue. Sander was gifted with a capacity to see with a “relational eye” and to state it in everyday language, while simultaneously using very sophisticated inventions to validate his assumptions. This work has made it possible to solve the riddle of the David and Goliath story that is part of the miracle of life over death, of love over hate, of health over sickness, which makes (most) mothers able to become good enough or whatever defines a progressive meeting between the infant’s doings with the doings of mothers.     

A Systematic Review of the Validity,Reliability, and Clinical Utility of Developmental Trauma Disorder (DTD) Symptom Criteria

Clinical Child and Family Psychology Review - Exposure to complex trauma is a prevalent and costly public health concern. Though not yet included in the formal diagnostic systems, developmental...     

The role of psychologists in requests to hasten death: A literature and legislation review and an agenda for future research

The opportunity for patients to request support to die is legalised in several countries and is associated with the development of a social and political debate that has taken place in recent years. We believe that psychologists can contribute to this debate. Here, we conducted a literature and legislation review with the aim of understanding arguments regarding the roles of the psychologist in hastening death. A systematic review of the peer-review literature in this field was carried out. The legislation of each country with hasten death practices was analysed to understand if psychologists are included in the protocols of hasten death practices. Despite a lack of literature, we found competence assessment, communication, psychological counselling, research and training and public policy to be the possible roles of psychologists in requests to hasten death. Based on the review, an agenda for future research is developed. We highlight the importance of psychology, raising its profile in the study of the various forms of death hastening requests.     

Differences between girls and boys in emerging language skills: Evidence from 10 language communities

The present study explored gender differences in emerging language skills in 13,783 European children from 10 non‐English language communities. It was based on a synthesis of published data assessed with adapted versions of the MacArthur‐Bates Communicative Development Inventories (CDIs) from age 0.08 to 2.06. The results showed that girls are slightly ahead of boys in early communicative gestures, in productive vocabulary, and in combining words. The difference increased with age. Boys were not found to be more variable than girls. Despite extensive variation in language skills between language communities, the difference between girls and boys remained. This suggests that the difference is caused by robust factors that do not change between language communities.