Relative power of harmonics in human frequency-following responses associated with voice pitch in American and Chinese adults

When the fundamental frequency (f0) is removed from a complex stimulus, the pitch of the f0 is still perceived by the listener. Through the use of the scalp-recorded frequency-following response, this study examined the relative contributions of thef0 and its harmonics in pitch processing by systematically manipulating the speech stimulus to remove component frequencies. 12 American and 12 Chinese adults were recruited. There were statistically significant effects of pitch strength and frequency error for the experimental-condition factor. There were significantly larger responses to the harmonics-only conditions than those obtained in the f0-only and control conditions. No statistically significant difference was observed between the two groups of participants. These findings indicate that neural responses associated with individual harmonics dominate the pitch processing in the human brainstem, irrespective of whether the listener's native language is nontonal or tonal.     

DOES THE SUPERVENIENCE ARGUMENT GENERALIZE?

We evaluate the scope of Jaegwon Kim's “supervenience argument” for reduction. Does its conclusion apply only to psychology, or does it generalize to all the special sciences? The claim that the supervenience argument generalizes to all the special sciences if it goes through for psychology is often raised as an objection to the supervenience argument. We argue that this objection is ambiguous. We distinguish three readings of it and suggest that some of them make it a plausible claim, whereas other readings make it implausible. We suggest that this ambiguity is the result of picturing the world as being hierarchically organized in levels, with the domain of physics at the bottom and the domains of the social sciences at the top. The plausibility of the objection depends on how we think of this picture. This popular picture, we suggest, involves three different dimensions along which reduction may occur.     

Effects of aging on interference control in selective attention and working memory

Working memory decay in advanced age has been attributed to a concurrent decrease in the ability to control interference. The present study contrasted a form of interference control in selective attention that acts upon the perception of external stimuli (access) with another form that operates on internal representations in working memory (deletion), in order to determine both of their effects on working memory efficiency in younger and older adults. Additionally, we compared memory performance under these access and deletion functions to performance in their respective control conditions. The results indicated that memory accuracy improved in both age groups from the access functions, but that only young adults benefited from the deletion functions. In addition, intrusion effects in the deletion condition were larger in older than in younger adults. The ability to control the irrelevant perception- and memory-elicited interference did not decline in general with advancing age; rather, the control mechanisms that operate on internal memory representations declined specifically.     

Derived control by compound and single stimuli in a matching-to-sample task in children

A matching-to-sample procedure was used to investigate whether 9-year-old children would demonstrate the emergence of a derived compound-sample conditional discrimination following training in four interrelated single-sample conditional discriminations and vice versa, as adults did in previous studies. In Experiment 1, three out of three children demonstrated the emergence of a compound-sample conditional discrimination following training in four single-sample conditional discriminations. In Experiment 2, two out of three children acquired a compound-sample conditional discrimination and they demonstrated the emergence of four single-sample conditional discriminations; one of them did so only after being exposed to a remediation training and testing procedure. Training variables that facilitated discrimination emergence in both directions are discussed. In general, results showed that the sophisticated learning skills that are supposedly possessed by adults are not required to demonstrate the two types of derived control under study.     

Productivity of doctoral programs in Psychology with Quality Mention in journal articles included in Journal Citation Reports

The main objective of the present study was to classify doctoral programs with Quality Mention in Psychology based on their scientific productivity. For this purpose, articles in the Web of Science published by professors teaching in these doctoral programs were analyzed. In addition, we analyzed scientific journals in which these professors tend to publish more papers and the evolution in the number of papers published until 2009. Results showed that the most productive doctoral program was the Neurosciences program at the University of Oviedo. This program showed a ratio of 40 articles--published in journals included in Journal Citation Reports--by each professor. In contrast, other programs did not reach a ratio of 10 articles per professor. Regarding journals, results showed that 9 out of the 20 most popular journals are Hispanic and a gradual increase in the number of published papers was also observed. Lastly, results and implications for quality assessment are discussed.     

Personal narratives about states of suffering and wellbeing: Children's conceptualization in terms of physical and psychological domain

The aim was to investigate how children conceptualize personal events of positive and negative valences pertaining to the physical and psychological domains. Five‐ to 9‐year‐olds narrated events referring to suffering states (Study 1, n = 112) and to suffering and wellbeing states (Study 2, n = 118). Analysis of the narratives revealed differences between the two states, with higher focus on events pertaining to a physical domain for suffering and to psychological domain for wellbeing; however, older children were more oriented toward psychological than physical events for both valences. Children showed higher tendency to produce causes compared to consequences, with younger children finding it difficult to introduce physical causes. Psychological suffering narratives revealed a richer psychological lexicon and more instances of domain coexistence. Asymmetry in the representation of different state valences and domains indicates multifaceted and developing conceptualization. Copyright © 2010 John Wiley & Sons, Ltd.     

The evolution of alexia in two cases of posterior cortical atrophy

Posterior cortical atrophy (PCA) is an uncommon presentation of Alzheimer's disease (AD), characterised by prevalent anatomo-functional involvement of posterior cortical areas. Accordingly, the main clinical features at onset are disorders of high-order visual processing, such as alexia and impairments of visuo-spatial and visuo-constructional abilities. The clinical features in the early stages of disease are variable, and they have been suggested to stem from prevalent ventral or dorsal brain pathology, and/or asymmetric hemispheric involvement. With disease progression, these differences tend to blur with the increasing severity of neuropsychological dysfunction. We report two PCA patients showing different patterns of reading impairment (respectively, letter-by-letter reading and neglect dyslexia). A follow-up study suggested that the qualitative features of alexia remain distinctive with disease evolution. In addition, single photon emission tomography (SPECT) studies revealed different patterns of hypoperfusion, consistent with the alexia types. A careful reading assessment can provide important insights to the pattern of progression of the disease in patients with PCA up to the late stages of the pathology.     

Trait emotional intelligence and disposition for forgiveness

The association of trait emotional intelligence with a disposition for forgiveness was explored. In addition, the relationship between emotional intelligence and affect was also examined. A sample of 268 Portuguese students completed measures of trait emotional intelligence, disposition to forgive, and affect. Results demonstrated that trait emotional intelligence scores were negatively associated with lasting resentment and negative affect and positively associated with positive affect.     

A step at a time: Preliterate children’s simulation of narrative movement during story comprehension

A growing body of work suggests that narrative comprehension involves the simulation of the described events and actions (e.g., Barsalou, 2008, Matlock, 2004). Preliterate children’s ability to simulate a narrative character’s movements is explored here in three studies. Children’s simulations of a character’s movements were found to be constrained by their expectation of the duration of the described activities (i.e., walking vs. driving) and by their expectations about the motivating influence of certain psychological factors (i.e., character being eager or not eager to get to a location). These findings reveal an ability among preliterate children to create impressively rich and dynamic mental representations of narrative events and address, with a novel methodology, an identified need for greater exploration of precursors to narrative comprehension.