First-Pass versus Second-Pass Parsing Processes in a Wernicke''s and a Broca''s Aphasic: Electrophysiological Evidence for a Double Dissociation

The present paper is a first attempt to integrate the classical brain lesion behavioral impairment approach of functional neuroanatomy and the electrophysiological brain mapping approach in the domain of syntactic processing. In a group of normal age-matched controls we identified three electrophysiological components previously observed in correlation with language comprehension processes: an early left anterior negativity normally seen in correlation with syntactic first-pass parsing processes (ELAN), a centroparietal negativity seen in correlation with processes of lexical-semantic integration (N400), and a late centroparietal positivity observed in correlation with secondary syntactic processes of reanalysis and repair (P600). The early left anterior negativity was absent in a patient with an extended lesion in the anterior part of the left hemisphere sparing the temporal lobe, although the late centroparietal positivity and the centroparietal N400 were present. In a patient with a left temporal-parietal lesion the early left anterior negativity was found to be present, whereas the N400 component was absent. These findings suggest that first-pass parsing and secondary processes are subserved by distinct brain systems.     

Spatial compatibility effects in the writing page: A comparison of left-handed inverters and noninverters

In recent contribution, Moscovitch and Smith (1979) and Smith and Moscovitch (1979) reported that left-handed inverters responded faster, using one hand, to target stimuli presented in the contralateral, rather than ipsilateral, visual field. Moscovitch and Smith attributed this finding to an anomaly in the visual or visuomotor neurological organization of inverters. The present experiment was an attempt to replicate the Moscovitch and Smith result with the purpose of questioning the validity of their neurological account. Therefore quite a similar visual RT paradigm was used in left-handed inverters and noninverters, but the form of the response was changed. The subjects responded to the stimuli with a stylus contact, made with their left dominant hand, on an A4-format sheet of metal, in well-contrasted conditions of inverted and noninverted writing posture. Both groups, in either condition, displayed faster RTs for stimuli presented in the visual field ipsilateral to their responding hand. In addition, this visual field effect strongly interacted with the lateral position of the response-stylus on the page, despite the fact that this position was varied between trials. The present experiment shows that the Moscovitch and Smith result is not reliable. It also demonstrates that spatial S-R compatibility effects may arise in tasks not involving a choice between concurrent response locations.     

Contextes et variation trans-situationnelle des concepts

Les trois expériences présentées ont pour objectif de tester l'effet de divers contextes sur l'accès initial aux propriétés dominantes et secondaires de concepts de catégories naturelles. Les résultats indiquent l'existence d'un effet facilitateur du contexte, pour peu qu'il soit suffisamment contraignant du point de vue de la richesse sémantique, et ceci dans des temps qui garantissent l'implication de processus automatiques. Cette dernière interprétation est par ailleurs confirmée par l'absence constante d'inhibition. La dernière expérience infirme de plus l'hypothèse d'une facilitation intralexicale entre contexte et cible et confirme que c'est bien la construction sémantique élaborée par le sujet qui facilite l'accès à certaines propriétés spécifiquement pertinentes des concepts-amorces.     

Multilevel SEM with random slopes in discrete data using the pairwise maximum likelihood

Pairwise maximum likelihood (PML) estimation is a promising method for multilevel models with discrete responses. Multilevel models take into account that units within a cluster tend to be more alike than units from different clusters. The pairwise likelihood is then obtained as the product of bivariate likelihoods for all within-cluster pairs of units and items. In this study, we investigate the PML estimation method with computationally intensive multilevel random intercept and random slope structural equation models (SEM) in discrete data. In pursuing this, we first reconsidered the general ‘wide format’ (WF) approach for SEM models and then extend the WF approach with random slopes. In a small simulation study we the determine accuracy and efficiency of the PML estimation method by varying the sample size (250, 500, 1000, 2000), response scales (two-point, four-point), and data-generating model (mediation model with three random slopes, factor model with one and two random slopes). Overall, results show that the PML estimation method is capable of estimating computationally intensive random intercept and random slopes multilevel models in the SEM framework with discrete data and many (six or more) latent variables with satisfactory accuracy and efficiency. However, the condition with 250 clusters combined with a two-point response scale shows more bias.     

Simulating the pattern of right-hemisphere-damaged patients for the processing of the alternative metaphorical meanings of words: evidence in favor of a cognitive resources hypothesis

Lately, many studies have suggested that communication impairments in brain-damaged individuals might be explained--at least in part--in terms of cognitive resource allocation. Reproducing a clinical pattern in normal subjects by using a dual-task treatment might be a way of evaluating the role of cognitive resources in the right hemisphere's contribution to verbal communication. This study suggests that the RH's presumed specific contribution to the processing of the alternative metaphorical meanings of words is, at least to some extent, the expression of the RH's complementary, and necessary, contribution to the pool of attentional resources needed for the most effortful processing.     

The influence of problem features and individual differences on strategic performance in simple arithmetic

The present study examined the influence of features differing across problems (problem size and operation) and across individuals (gender, amount of daily arithmetic practice, calculator use, and arithmetic skill) on simple arithmetic performance. Regression analyses were used to investigate the role of these variables in both strategy selection and strategy efficiency. Results show that more skilled and highly practiced students used memory retrieval more often and executed their strategies more efficiently than did less skilled and practiced students. Furthermore, calculator use correlated with both retrieval and procedural strategy efficiency but not with strategy selection. Only very small associations with gender were observed, with boys retrieving slightly faster than girls. Implications of the present findings for models of mental arithmetic are discussed.     

Differential effects of age-of-acquisition for concrete nouns and action verbs: evidence for partly distinct representations?

There is growing evidence that words that are acquired early in life are processed faster and more accurately than words acquired later, even by adults. As neuropsychological and neuroimaging studies have implicated different brain networks in the processing of action verbs and concrete nouns, the present study was aimed at contrasting reaction times to early and later-acquired action verbs and concrete nouns, in order to determine whether effects of word learning age express differently for the two types of words. Our results show that while word frequency affected both types of words in the same way, distinct learning age effects were observed for action verbs and concrete nouns. A further experiment specified that this difference was observed for verbs describing actions belonging to the human motor repertoire, but not for verbs denoting actions past this repertoire (e.g., to neigh). We interpret these data within a recently emerging framework according to which language processing is associated with sensory motor programs.     

LACAN AND FERENCZI: PARADOXICAL KINSHIP?

The kinship between Ferenczi and Lacan can be compared with the phases of an eclipse. Throughout the first period of his teaching, Lacan presents Ferenczi as the most relevant analyst among the first pioneers. It is clear that he hopes to develop Ferenczi’s subversive reflections about clinical practice. Surprisingly, in the second period references to Ferenczi seem to disappear, even when he takes on the question of trauma in light of what he calls the register of the Real; he does not cite Ferenczi at all. In a third period, after Lacan’s death, certain Lacanians are very critical about Ferenczi, often excessively. Today, analysts open to Lacan’s teaching are discovering Ferenczi and the richness of his work, in which Lacan found numerous springheads for his own work.     

Couple and Family Treatments: Study Quality and Level of Evidence

This paper examines the application of the guidelines for evidence‐based treatments in family therapy developed by Sexton and collaborators to a set of treatment models. These guidelines classify the models using criteria that take into account the distinctive features of couple and family treatments. A two‐step approach was taken: (1) The quality of each of the studies supporting the treatment models was assessed according to a list of ad hoc core criteria; (2) the level of evidence of each treatment model was determined using the guidelines. To reflect the stages of empirical validation present in the literature, nine models were selected: three models each with high, moderate, and low levels of empirical validation, determined by the number of randomized clinical trials (RCTs). The quality ratings highlighted the strengths and limitations of each of the studies that provided evidence backing the treatment models. The classification by level of evidence indicated that four of the models were level III, “evidence‐based” treatments; one was a level II, “evidence‐informed treatment with promising preliminary evidence‐based results”; and four were level I, “evidence‐informed” treatments. Using the guidelines helped identify treatments that are solid in terms of not only the number of RCTs but also the quality of the evidence supporting the efficacy of a given treatment. From a research perspective, this analysis highlighted areas to be addressed before some models can move up to a higher level of evidence. From a clinical perspective, the guidelines can help identify the models whose studies have produced clinically relevant results.     

Progression and Verification of Situation Calculus Agents with Bounded Beliefs

We investigate agents that have incomplete information and make decisions based on their beliefs expressed as situation calculus bounded action theories. Such theories have an infinite object domain, but the number of objects that belong to fluents at each time point is bounded by a given constant. Recently, it has been shown that verifying temporal properties over such theories is decidable. We take a first-person view and use the theory to capture what the agent believes about the domain of interest and the actions affecting it. In this paper, we study verification of temporal properties over online executions. These are executions resulting from agents performing only actions that are feasible according to their beliefs. To do so, we first examine progression, which captures belief state update resulting from actions in the situation calculus. We show that, for bounded action theories, progression, and hence belief states, can always be represented as a bounded first-order logic theory. Then, based on this result, we prove decidability of temporal verification over online executions for bounded action theories.