Dingoes (Canis dingo) can use human social cues to locate hidden food

There is contention concerning the role that domestication plays in the responsiveness of canids to human social cues, with most studies investigating abilities of recognized domestic dog breeds or wolves. Valuable insight regarding the evolution of social communication with humans might be gained by investigating Australian dingoes, which have an early history of domestication, but have been free-ranging in Australia for approximately 3500–5000 years. Seven ‘pure’ dingoes were tested outdoors by a familiar experimenter using the object-choice paradigm to determine whether they could follow nine human communicative gestures previously tested with domestic dogs and captive wolves. Dingoes passed all cues significantly above control, including the “benchmark” momentary distal pointing, with the exception of gaze only, gaze and point, and pointing from the incorrect location. Dingo performance appears to lie somewhere between wolves and dogs, which suggests that domestication may have played a role in their ability to comprehend human gestures.     

fMRI responses to Jung's Word Association Test: implications for theory,treatment and research

Jung's Word Association Test was performed under fMRI conditions by 12 normal subjects. Pooled complexed responses were contrasted against pooled neutral ones. The fMRI activation pattern of this generic ‘complexed response’ was very strong (corrected Z scores ranging from 4.90 to 5.69). The activation pattern in each hemisphere includes mirror neurone areas that track ‘otherness’ (perspectival empathy), anterior insula (both self‐awareness and emotional empathy), and cingulated gyrus (self‐awareness and conflict‐monitoring). These are the sites described by Siegel and colleagues as the ‘resonance circuitry’ in the brain which is central to mindfulness (awareness of self) and empathy (sense of the other), negotiations between self awareness and the ‘internal other’. But there is also an interhemispheric dialogue. Within 3 seconds, the left hemisphere over‐rides the right (at least in our normal subjects). Mindfulness and empathy are central to good psychotherapy, and complexes can be windows of opportunity if left‐brain hegemony is resisted. This study sets foundations for further research: (i) QEEG studies (with their finer temporal resolution) of complexed responses in normal subjects (ii) QEEG and fMRI studies of complexed responses in other conditions, like schizophrenia, PTSD, disorders of self organization.     

Looking for Cancer: Expertise Related Differences in Searching and Decision Making

We examined how the ability to detect lung nodules in chest x‐ray inspection is reflected in experience‐related differences in visual search and decision making, and whether the eye‐tracking metric time‐to‐first hit showed systematic decreases across expertise levels are examined. In the study decision making improved with expertise, however, time‐to‐first fixate a nodule showed only a non‐significant trend to decrease with expertise. Surprisingly, naïve and expert observers allocated less visual attention at nodules compared with first and third year radiography students. This similarity in visual attention at nodules but not in decision making was explained by the fact that naïve observers were more likely to fixate and make errors on distracter regions. Time‐to‐first hit has been linked to expert performance in mammography, but in this study was not sufficiently sensitive to demonstrate clear linear improvements across expertise groups. This brings into question the use of this metric as an indirect measure of rapid initial holistic processing. Copyright © 2012 John Wiley & Sons, Ltd.     

On the Role of Goal Orientation Traits and Self-Efficacy in the Goal-Setting Process: Distinctions That Make a Difference

We conducted a field study to investigate how goal orientation traits and two variants of self-efficacy affect the goal-setting process and, in turn, performance. Participants were 255 college students enrolled in psychology or biochemistry courses at a large east-coast university in the People's Republic of China. Structural equation modeling analyses largely supported the argument that self-efficacy defined as a trait interacts with goal orientation traits, whereas self-efficacy defined as a state mediates the trait effects in the goal-setting process. The specific Trait × Trait interaction form was consistent with Dweck's original goal orientation theory and Brockner's behavior plasticity theory.     

Interaction of Tremor and Magnification in a Motor Performance Task With Visual Feedback

In this study, the interaction between increased gain in the visual feedback loop and motor control of the periphery was investigated. Participants (N = 15) were asked to maintain a constant finger position while they used magnified visual feedback. The measure of the accuracy of each trial was the standard deviation (trial error) of the finger position. Trials performed under magnification had lower trial errors than trials without magnification. The change in trial error between trials with and without magnification proved greater than the difference between trials at any 2 magnifications. In contrast, the differences between individual subjects were often greater than the differences between performances at individual magnifications. At higher magnifications, performance seemed to be limited by the tremor; the ratio of trial error to tremor intensity was constant. When applied to microsurgery, the present results accord with those found in earlier research, including investigations that have found that the level of magnification used in microsurgery is not the most significant factor in achieving good results and that tremor is the limiting factor in microsurgical tasks.     

Remuneration discrepancies in the landlocked economies of Malaŵi and Uganda

Although the original study of remuneration differences between local and expatriate development workers took place in the landlocked economy of Mala?i, the study has never been replicated outside of one sector and organization (the National University), and took place prior to the 2000 Millennium Development Goals. Participating in the present studies were 458 aid and development professionals, working across a range of sectors in Mala?i (n = 241, response rate = 50%) and Uganda (n = 217, response rate = 51%). The size of the gap between local and international workers, measured using the World Bank's purchasing power parity, was higher in Mala?i (4.04:1) than in Uganda (1.97:1). The ratio was more clearly within tolerance levels in Uganda than in Mala?i. Consistent with these differences, and controlling for organization, cultural, and demographic factors, locally remunerated workers reported more and expatriate workers less injustice and demotivation in Mala?i than in Uganda. Although sample sizes for the internationally remunerated are small, the findings suggest that wider disparities may (1) hinder perspective‐taking and (2) decrease motivation. In‐country workshops with stakeholders and subject‐matter experts considered the findings, and potential solutions offered through the survey form. They recommended the implementation of performance‐based remuneration, including competency‐based job analysis and evaluation. Competencies in such functions can be provided by humanitarian work psychology.     

One Hundred Years of Semantic Paradox

This article contains an overview of the main problems, themes and theories relating to the semantic paradoxes in the twentieth century. From this historical overview I tentatively draw some lessons about the way in which the field may evolve in the next decade.     

What Is Social Construction?

In this paper I discuss the question of what it means to say that a property is socially constructed. I focus on an influential project that many social constructivists are engaged in, namely, arguing against the inevitability of a trait, and I examine several recent characterizations of social construction, with the aim of assessing which one is more suited to the task.     

Pre-requisites for conscious awareness: clues from electrophysiological and behavioral studies of unilateral neglect patients

Encoding sensory events entails processing of several physical attributes. Is the processing of any of these attributes a pre-requisite of conscious awareness? This selective review examines a recent set of behavioral and event-related potentials, studies conducted in patients with visual and auditory unilateral neglect or extinction, with the aim of establishing what aspects of initial processing are impaired in these patients. These studies suggest that extinguished visual stimuli excite the sensory cortices, but perhaps to a lesser degree than acknowledged stimuli do. However, encoding spatial attributes of auditory and visual stimuli appear to be preferentially impaired. In light of results from patients with other neuro-behavioral deficits, it is argued that egocentric spatial information is an essential pre-requisite for knowing that an external event occurred. In contrast, information handled by mostly domain-specific circuits, such as in the ventral temporal lobe, supports awareness of the identity of a stimulus, but not of its mere presence. Without spatial information, the stimulus identity will remain implicit.