Manipulating social cues in baboon gesture learning: what does it tell us about the evolution of communication?

Animal Cognition - Reading the attentional state of an audience is crucial for effective intentional communication. This study investigates how individual learning experience affects subsequent...     

What do cross-national comparisons of personality traits tell us? The case of conscientiousness

Much research contrasts self-reported personality traits across cultures. We submit that this enterprise is weakened by significant methodological problems (in particular, the reference-group effect) that undermine the validity of national averages of personality scores. In this study, behavioral and demographic predictors of conscientiousness were correlated with different cross-national measures of conscientiousness based on self-reports, peer reports, and perceptions of national character. The predictors correlated strongly with perceptions of national character, but not with self-reports and peer reports. Country-level self- and peer-report measures of conscientiousness failed as markers of between-nation differences in personality.     

What does infant perception tell us about theories of perception?

The article begins with a summary of eight well-substantiated conclusions drawn from research on perception in infants that have implications for theories of perception. The following section examines several traditional and modern theories of perception in the light of these conclusions. Finally, some "big issues" that have divided perceptual and cognitive theories are discussed, with the suggestion that research on infants can help reconcile the divided camps. Research on perception in young infants not only flourishes but also presents a challenge to all theories of perception.     

The faculty of language: what's special about it?

We examine the question of which aspects of language are uniquely human and uniquely linguistic in light of recent suggestions by Hauser, Chomsky, and Fitch that the only such aspect is syntactic recursion, the rest of language being either specific to humans but not to language (e.g. words and concepts) or not specific to humans (e.g. speech perception). We find the hypothesis problematic. It ignores the many aspects of grammar that are not recursive, such as phonology, morphology, case, agreement, and many properties of words. It is inconsistent with the anatomy and neural control of the human vocal tract. And it is weakened by experiments suggesting that speech perception cannot be reduced to primate audition, that word learning cannot be reduced to fact learning, and that at least one gene involved in speech and language was evolutionarily selected in the human lineage but is not specific to recursion. The recursion-only claim, we suggest, is motivated by Chomsky's recent approach to syntax, the Minimalist Program, which de-emphasizes the same aspects of language. The approach, however, is sufficiently problematic that it cannot be used to support claims about evolution. We contest related arguments that language is not an adaptation, namely that it is "perfect," non-redundant, unusable in any partial form, and badly designed for communication. The hypothesis that language is a complex adaptation for communication which evolved piecemeal avoids all these problems.     

What do patterns in empirical data tell us about the structure of the world?

This article discusses the relation between features of empirical data and structures in the world. I defend the following claims. Any empirical data set exhibits all possible patterns, each with a certain noise term. The magnitude and other properties of this noise term are irrelevant to the evidential status of a pattern: all patterns exhibited in empirical data constitute evidence of structures in the world. Furthermore, distinct patterns constitute evidence of distinct structures in the world. It follows that the world must be regarded as containing all possible structures. The remainder of the article is devoted to elucidating the meaning and implications of the latter claim.     

Adlerian-oriented early memory research: what does it tell us?

Of the different approaches to interpreting early memories (EMs), Adlerian-oriented EM research comparatively has shown a most substantial increase in the past 10 years. I examine all Adlerian-oriented EM research appearing from 1981 through 1990. The majority of the research provides a tentative base of support for Adler's (1931) views about EMs. However, several deficiencies in these investigations are identified (e.g., a lack of pilot studies), and some recommendations are made for future EM studies.     

What determines saccade timing in sequences of coordinated eye and hand movements?

In action sequences, the eyes are generally fixated ahead of the stimulus being responded to, overlapping the processing of adjacent stimuli. What determines when the saccade to the next item is initiated and what processing is overlapped remain controversial. Saccade initiation has been linked directly to the difficulty of the underlying processing on the fixated item or to a rhythmic timer whose period is adjusted to the difficulty of the context. We compared the effects of item and context difficulty when subjects made speeded choice responses to five visual stimuli arrayed linearly. Item difficulty was manipulated by varying stimulus-response compatibility, creating contexts (sequences) whose average item difficulty differed. Results showed that saccade initiation time reflected item difficulty, not context difficulty, with evidence that saccade initiation was delayed until central processing was completed. We discuss the implications of these results for the control of saccades and processing in action sequences.     

FOXP2 in focus: what can genes tell us about speech and language?

The human capacity for acquiring speech and language must derive, at least in part, from the genome. In 2001, a study described the first case of a gene, FOXP2, which is thought to be implicated in our ability to acquire spoken language. In the present article, we discuss how this gene was discovered, what it might do, how it relates to other genes, and what it could tell us about the nature of speech and language development. We explain how FOXP2 could, without being specific to the brain or to our own species, still provide an invaluable entry-point into understanding the genetic cascades and neural pathways that contribute to our capacity for speech and language.     

Parallel reading and mathematics growth for English learners: Does timing of reclassification matter?

This study compared reading and mathematics growth trajectories in a statewide dataset of 33,715 students across third through fifth grades. Specifically, we examined growth for English Learners (ELs) who were reclassified as no longer needing English Language services at different grade levels as compared to their never-EL peers. Overall, EL students performed significantly below never-EL students on reading and mathematics assessments at Grade 3, with EL students making greater academic gains across time points than never-EL students. Students who were reclassified after third grade and after fourth grade closed, or began to close, the academic opportunity gap by the end of fifth grade, providing promising evidence suggesting that reclassification policies are adequate for identifying those students who no longer need EL services. Students who continued to be classified as EL from third through fifth grades continued to score significantly lower than never-ELs, and in many cases other EL groups, indicating that there exists a group of EL students who continue to make inadequate reading and mathematics gains across late elementary school. Implications for policy and practices that support EL students' mathematics and reading growth are discussed.     

What do memory data tell us about the role of contingency awareness in evaluative conditioning?

Evaluative conditioning (EC) refers to the effect that pairings of a conditioned stimulus (CS) with a valenced unconditioned stimulus (US) lead to changes in the evaluation of the CS. There have been recurring debates about whether EC requires awareness of the contingency between CSs and USs during learning. We argue that the memory performance data obtained in the standard paradigm remain ambiguous about the role of contingency awareness during the encoding of CS–US pairings. First, memory performance data are unable to distinguish between encoding-related versus retrieval-related effects. Second, the relation between memory performance and evaluation is correlational, which limits conclusions about causal relations between memory performance and EC effects. These ambiguities imply that any possible data pattern can be interpreted in at least two different ways. It is concluded that a resolution of the current debate requires alternative approaches in which contingency awareness is experimentally manipulated during the encoding of CS–US pairings.     

What can self-disorders in schizophrenia tell us about the nature of subjectivity? A psychopathological investigation

The purpose of this article is to show how schizophrenia, understood as a distortion of the most intimate structures of subjectivity, illustrates the nature of subjectivity as such, while at the same time how philosophical considerations may help to understand schizophrenia. More precisely, schizophrenic experiences of self-alienation seem to reflect a congealing or concretization of a form of differentiation or potential alterity implicit in the dynamic nature of subjectivity. In other words, we propose that the structure of subjectivity includes potential divisions and fissures that condition the experiences of radical self-alienation seen in schizophrenia. In order to elucidate how this alterity emerges within the self in schizophrenia and in order to consider its conditions of possibility we examine the disorders of the self as described in phenomenological psychopathology. We especially use the work of the Japanese psychiatrists Mari Nagai, her teacher Bin Kimura, and the French psychiatrist Henry Ey, supplemented with clinical material from our own research. Finally, we shed light on the development of the psychotic symptoms such as hallucinations and delusions, which are understood as the expressions of a radical alterization (i.e., becoming other) of the self.     

The darkroom of the mind — what does neuropsychology now tell us about brands?

How does a brand live and die in the memory? Where does the concept of a relationship with a brand fit into mental activity? What are thoughts, emotions and feelings and do people have them about brands in any meaningful way? What should one think about such concepts as consciousness and the unconscious in relation to brands and brand messages? Is the way in which managers of brands codify them a reflection of reality? These are only some of the fundamental questions that should concern professionals involved with organisations and brands. This paper draws on scientific discoveries about the human brain to build on the empirical knowledge that leaders in organisations, marketers, academics and researchers have gained about brands over the last five decades. The first part of the paper highlights the inconsistencies that occur between what is found in the development and evaluation of brand strategy and what happens in ‘real life’. It suggests that the newly merged disciplines of neuroscience and cognitive psychology (called neuropsychology) offer the scientific basis for understanding how human beings create, store, recall and relate to brands in everyday life. The second part explains some of the most relevant neuropsychological discoveries about the brain in terms of the implications for brand marketing. The topics covered are: brain functions and structure; consciousness and the unconscious; memory and language. The paper concludes by thinking about the current practise of qualitative research and how it matches up to the findings of the new science. Copyright © 2002 Henry Stewart Publications.     

What do decision models tell us about information use?

This paper develops hypotheses about the implications of different types of decision for the utilization of different types of systematically produced information: data, research, and analysis. The engineering and enlightenment models found in the knowledge utilization literature prove inadequate for this purpose. We turn to three decision models—routine, incremental, and fundamental–and determine their implied demands for information. We also examine how information might be used in scanning procedures in anticipation of decision regime shifts. The results suggest that patterns of information should differ markedly in each decision context and indicate that there may be an inherent bias against the use of research in decision. Evert A. Lindquist, a doctoral candidate at the Graduate School of Public Policy, University of Calfornia at Berkeley, is completing a dissertation onPolicy Institutes in Canada: The Organization and Relevance of Public Inquiry and will join the faculty of the Department of Political Science at the University of Toronto this fall. Organizations, public policy, and the role of information in decision making are among his primary research interests.     

What can neuroimaging meta-analyses really tell us about the nature of emotion?

In Vytal and Hamann (2010) we reported a neuroimaging meta-analysis that found that basic emotions can be distinguished by their brain activation correlates, in marked contrast to Lindquist et al.'s conclusions in the target article. Here, I discuss implications of these findings for understanding emotion, outline limitations of using meta-analyses and neuroimaging as the sole basis for deciding between emotion views, and suggest that these views are essentially compatible and could be adapted and combined into an integrated emotion framework.     

What can megastudies tell us about the orthographic structure of English words?

Although the majority of research in visual word recognition has targeted single-syllable words, most words are polysyllabic. These words engender special challenges, one of which concerns their analysis into smaller units. According to a recent hypothesis, the organization of letters into groups of successive consonants (C) and vowels (V) constrains the orthographic structure of printed words. So far, evidence has been reported only in French with factorial studies of relatively small sets of items. In the present study, we performed regression analyses on corpora of megastudies (English and British Lexicon Project databases) to examine the influence of the CV pattern in English. We compared hiatus words, which present a mismatch between the number of syllables and the number of groups of adjacent vowel letters (e.g., client), to other words, controlling for standard lexical variables. In speeded pronunciation, hiatus words were processed more slowly than control words, and the effect was stronger in low-frequency words. In the lexical decision task, the interference effect of hiatus in low-frequency words was balanced by a facilitatory effect in high-frequency words. Taken together, the results support the hypothesis that the configuration of consonant and vowel letters influences the processing of polysyllabic words in English.     

Release from Pl in running memory: What does this tell us about developmental STM?

Several theories consider the development of short-term memory (STM) in children to reflect the development of processing operations. This article reports an experiment that tested some of these theories, using a release from proactive interference (PI) procedure in conjunction with a running memory task, to track down age-related improvements in the processing of various kinds of information. Although evidence for the development of PI release with age appeared for two kinds of information, namely class of item and acoustic similarity, there was no evidence whatsoever for the existence of a relationship between STM performance and PI release. It was concluded that the development of STM on the one hand, and of the capacity to process item or acoustic information on the other, proceed independently of each other. The discussion deals with the apparent conflict between this conclusion and the theoretical positions.     

Quantitative summaries of single-subject studies: What do group comparisons tell us about individual performances?

Kollins, Newland, and Critchfield (1999) responded to our comments about their review by arguing that their quantitative summary was not a meta-analysis and should not be criticized in these terms. We reply that regardless of what they call their review, it included confounding effects that make interpretations of the results problematic. Kollins et al. also argued that unexpected findings of the sort they reported can serve as a spur for further research. We reply that the understanding of findings that deviate from existing knowledge may well require empirical investigation. Such endeavors, however, should begin with an evaluation of the review procedures that suggested the existence of the differences. Finally, we emphasize that quantitative summaries of individual data are, in the end, a form of group comparison. The implications of using group methods to clarify individual data deserve frank recognition in discussions of the outcomes.