Atypical speech lateralization in adults with developmental coordination disorder demonstrated using functional transcranial Doppler ultrasound

Research using clinical populations to explore the relationship between hemispheric speech lateralization and handedness has focused on individuals with speech and language disorders, such as dyslexia or specific language impairment (SLI). Such work reveals atypical patterns of cerebral lateralization and handedness in these groups compared to controls. There are few studies that examine this relationship in people with motor coordination impairments but without speech or reading deficits, which is a surprising omission given the prevalence of theories suggesting a common neural network underlying both functions. We use an emerging imaging technique in cognitive neuroscience; functional transcranial Doppler (fTCD) ultrasound, to assess whether individuals with developmental coordination disorder (DCD) display reduced left‐hemisphere lateralization for speech production compared to control participants. Twelve adult control participants and 12 adults with DCD, but no other developmental/cognitive impairments, performed a word‐generation task whilst undergoing fTCD imaging to establish a hemispheric lateralization index for speech production. All participants also completed an electronic peg‐moving task to determine hand skill. As predicted, the DCD group showed a significantly reduced left lateralization pattern for the speech production task compared to controls. Performance on the motor skill task showed a clear preference for the dominant hand across both groups; however, the DCD group mean movement times were significantly higher for the non‐dominant hand. This is the first study of its kind to assess hand skill and speech lateralization in DCD. The results reveal a reduced leftwards asymmetry for speech and a slower motor performance. This fits alongside previous work showing atypical cerebral lateralization in DCD for other cognitive processes (e.g., executive function and short‐term memory) and thus speaks to debates on theories of the links between motor control and language production.     

货币·金融危机·新自由主义——关于现代化与当代资本主义的访谈

The current global financial crisis is essentially a credit crisis of currencies. The divorce of the U.S. dollar from Gold Specie Standard makes its issuance under the control of the U.S. government and even risk losing control. When the U.S. dollar becomes the world currency,the U.S government would be able to influence and even control the central banks of other countries through issuing U.S. dollars. However,it may also lead to the credit crisis if there is no sufficient wealth to establish a solid found...     

Does exposure to ambient odors influence the emotional content of memories?

This study examined the effects of implicitly presented odors on the emotional content of memory narratives. Participants were exposed to low levels of perfumes or no odors while they reconstructed a memory from childhood and a recurrent dream. Narratives were analyzed for emotional content using the Linguistic and Inquiry Word Count program. Exposure to perfumes increased the percentage of positive emotion words used by participants in recalling both dreams and childhood memories. In addition, exposure to odors decreased the percentage of negative emotion words that men used in their narratives, whereas the opposite effect was found for women. Discussion focuses on gender differences in written emotional expression, possible ways by which perfumes may exert their effects, and the usefulness of using ambient odors and objective content analysis when studying emotions in memories.     

The Influence of Hope on the Relationship Between Racial Discrimination and Depressive Symptoms

This study investigated how hope influences the relationship between discrimination and depressive symptoms. Results from participants' (N = 318) responses suggest that increased levels of hope were directly related to decreased levels of depressive symptoms. However, increased levels of hope were also related to a stronger relationship between discrimination and depressive symptoms. Este estudio investigó cómo la esperanza influye en la relación entre discriminación y síntomas depresivos. Los resultados obtenidos a partir de las respuestas de los participantes (N = 318) sugieren que unos niveles más elevados de esperanza estuvieron directamente relacionados con unos niveles más bajos de síntomas depresivos. Sin embargo, los niveles superiores de esperanza también estuvieron relacionados con una relación más fuerte entre discriminación y síntomas depresivos.     

CLASSICAL PHYSICS AND EARLY QUANTUM THEORY: A LEGITIMATE CASE OF THEORETICAL UNDERDETERMINATION

In 1912, Henri Poincaré published an argument which apparently shows that the hypothesis of quanta is both necessary and sufficient for the truth of Planck's experimentally corroborated law describing the spectral distribution of radiant energy in a black body. In a recent paper, John Norton has reaffirmed the authority of Poincarés argument, setting it up as a paradigm case in which empirical data can be used to definitively rule out theoretical competitors to a given theoretical hypothesis. My goal is to dispute Norton's claim that there is no theoretical underdetermination problem arising between classical physics and early quantum theory. The strategy I use in defending my view is to adopt a suggestion made by Jarrett Leplin and Larry Laudan on how to assess the relative merits of competing theoretical alternatives, where each alternative has an equal capacity to save the phenomena. In the course of the paper, I distinguish between two branches of classical physics: classical mechanics and classical electromagnetism. The former is claimed by Norton and Poincaré to be determinately ruled out by the black body evidence; and it is the former that I argue is compatible with this evidence.     

The effects of masturbatory reconditioning with nonfamilial child molesters.

Abel and Annon's (Reducing deviant sexual arousal through satisfaction, Denver, Colo., 1982) suggested combination of 'directed masturbation' and 'satiation' to alter deviant sexual preferences, was applied to 10 nonfamilial child molesters. Post-treatment assessments revealed significant reductions in deviant arousal as was expected, but unfortunately there were also reductions in appropriate arousal although these changes did not achieve statistical significance. The results are discussed in terms of their meaning but it is concluded that empirical support for these clinically popular procedures remains weak.     

Cultural Expectations of One's Own and Other Nations' Foreign Policy Action Templates

One useful conceptualization of culture is that of a preestablished set of behavioral competencies, which in turn form behavioral dispositions. According to this variant of culture theory, decision-makers faced with new situations will rely on established behavioral competencies in forming an initial policy response. This assumption can also be applied at the nation-state level, where established behavioral predispositions may lessen uncertainty and stress in ambiguous yet salient foreign policy situations. Likewise, observers in one nation-state may be able to identify such behavioral dispositions in other nation-states, lending greater transparency and predictability to international interactions. Do such culturally based action templates exist? Are they recognizable even to ordinary citizens? Citizens in Russia, Japan, and the United States were asked to posit the most likely and least likely behavioral responses to a variety of foreign policy situations by their own nation and by the other two nations in the sample. The results indicate that recognition of such templates takes place, and that recognition of one nation's template content by citizens of the other nations typically matches recognition of template content by the nation's own citizens. The research also shows that such action templates can be eroded and become unrecognizable over time, both to insiders and to outsiders.