Estudio y adaptación experimental del test discriminativo neurológico rápido «QNST»

RESUMEN

En este trabajo los autores presentan una primera adaptación al castellano del Test Discriminativo Neurológico Rápido (QNST), de Mutti, Sterling y Spalding (1974–1978). Para ello comienzan describiendo los catorce subtests que componen la prueba, cómo se corrige y los estudios de validez y fiabilidad realizados. Seguidamente presentan su propio estudio del test, teniendo en cuenta variables tales como edad, sexo, “status” y procedencia rural-urbana (esta última sólo para seleccionar la muestra) y realizan unos baremos referidos a una muestra de la población española. Los autores encuentran que los siete y ocho años son edades clave en las que se producen cambios significativos en la ejecución del QNST, que las diferencias encontradas según el sexo son mínimas y que el nivel cultural influye en la realización de algunas tareas.     

Emotional processing in people with obsessive-compulsive symptomatology

The present study was aimed at assessing obsessive-compulsive symptomatology based on visualization of affective pictures, elaborated following Peter Lang's dimensional model of emotion. Participants were 370 psychology students at Malaga University, selecting those with high and low scores in obsessive-compulsive symptomatology. All participants assessed a set of pictures containing obsessive-compulsive cues using the three scales of the Self-Assessment Manikin: affective valence, arousal, and control/dominance. The results show that participants with high scores in obsessive-compulsive symptomatology experience reduced control over the affective pictures and rate as more unpleasant the neutral and obsessive-compulsive pictures.     

Minority Language Education in Unbalanced Bilingual Situations: A Case for the Linguistic Interdependence Hypothesis

This paper is placed in the linguistic and sociocultural context of Eastern Aragon, a region of Spain where two contact languages (Spanish and Catalan) coexist in an unbalanced situation favoring Spanish. The research was prompted by the regulation for the teaching of Catalan in that area, by means of the Cooperation Agreement signed by the Spanish Educational Ministry (MEC) and the local autonomous Cultural and Educational Department of the Diputación General de Aragon in November 1986. A comparative analysis is made between Eastern Aragon students' linguistic competence in Catalan and Spanish; a further comparison is established between these students and others living in bilingual Catalonia and in monolingual Aragon. We conclude by pointing out that the Linguistic Interdependence Hypothesis accounts for the results obtained in the study.     

Vertical jumping and signaled avoidance

This paper reports an experiment intended to demonstrate that the vertical jumping response can be learned using a signaled-avoidance technique. A photoelectric cell system was used to record the response. Twenty female rats, divided equally into two groups, were exposed to intertrial intervals of either 15 or 40 s. Subjects had to achieve three successive criteria of acquisition: 3, 5, and 10 consecutive avoidance responses. Results showed that both groups learned the avoidance response, requiring increasingly larger numbers of trials as the acquisition criteria increased. No significant effect of intertrial interval was observed.     

Assessment of tobacco craving by means of the affective image visualization paradigm

Smoking cues that increase craving are subjectively described by smokers as pleasant rather than unpleasant. However, it remains controversial whether the motivational nature of these smoking cues is consistent with an appetitive or aversion-relief model of tobacco craving. In the two studies presented here, the Bioinformational model of emotion proposed by Lang was used to address this issue. In study I, 40 smokers (10 males) assessed a set of tobacco-related pictures and a subset of standard pleasant, neutral, and unpleasant pictures in order to examine how craving relates to the three general dimensions of emotion: valence, arousal, and dominance. Results showed that the tobacco-related images were all assessed as appetitive, and craving was correlated positively with valence (r = .863, p < .0001) and arousal (r = .923, p < .0001) and negatively with dominance (r = −.504, p < .002). In study II, 24 female abstinent smokers were examined using Lang’s startle modulation paradigm in order to assess whether tobacco-related pictures, compared to standard pleasant and unpleasant ones, inhibited the startle response, consistent with an appetitive model of tobacco craving. Contrary to expectations, the startle response during visualization of tobacco-related pictures was more similar in magnitude to the response to unpleasant than to pleasant images, a finding inconsistent with an appetitive model of tobacco craving.     

Effects of reward magnitude and training frequency on the learning rates and memory retention of the Port Jackson shark Heterodontus portusjacksoni

Animal Cognition - The development of adaptive responses to novel situations via learning has been demonstrated in a wide variety of animal taxa. However, knowledge on the learning abilities of one...     

Aprendiendo a regular la acción conjunta: el formato de dar-y-tomar

Resumen

El desarrollo de mecanismos para regular la acción conjunta es uno de los objetivos comunicativos más tempranos que el niño debe conseguir a lo largo de sus dos primeros años de vida. El contexto de dar-y-tomar aparece como una de las situaciones naturales en las que el niño conoce y aprende el dominio del curso de la acción. La interacción en dicha situación cumple una doble función, semántica y prágmatica, a la vez que permite la adquisición de las primeras distinciones gramaticales. En este sentido, el estudio del dar-y-tomar muestra el comienzo y desarrollo de las técnicas de requerimiento, la elaboración lingüística y conceptual de los términos asociados a sus segmentos de acción y el uso de los primeros pares deícticos. El artículo estudia el inicio y el desarrollo de este formato en dos niños y una niña durante sus dos primeros años de vida en situaciones interactivas con sus madres.     

Frontal Lobes and Ageing Effect on the P300 Component of the Auditory Event—Related Potentials

Dans cette étude, on a comparé le temps de latence et l'amplitude du P300 dans un échantillon de dix jeunes gens (moyenne d'âge: 20 ans) et de dix personnes plus âgées (moyenne d'âge: 68 ans). Comme prévu, le temps de latence augmente avec l'âge, mais le taux de croissance varie avec l'aire corticale prise en considération. L'amplitude baisse avec l'âge pour presque toutes les localisations cérébrales, sauf pour l'aire frontale où elle augmente. Nous avons aussi montré l'importance de ces découvertes pour la mesure du vieillissement du cerveau et pour le diagnostic des maladies cérébrales qui apparaissent avec l'âge.
In the present investigation we compared the latency and amplitude of the P300 in a sample of 10 young people (mean age = 20) and 10 elderly people (mean age = 68). As expected, latency increases with age, but this increasing rate varies depending on the cortical area analysed. The amplitude decreases with age over nearly all areas of the scalp, except for the frontal areas, where it increases. We also establish the importance of these findings in the evaluation of brain ageing and in the diagnosis of cerebral diseases that appear with age.     

Brief report Effects of spinal cord injuries on the subjective component of emotions

Responses to a structured interview by 19 patients with spinal cord injuries (SCI) (7 women and 12 men) concerning their past (pre‐injury) and present emotions were analysed and compared with responses by 19 SCI‐free controls matched for sex, age, and education. In addition, subjects assessed the valence and arousal of 10 pleasant, 10 neutral, and 10 unpleasant pictures selected from the International Affective Picture System. The results indicate that there is no decrease in emotional experience among individuals with SCI compared with those without. For all the emotional scales (joy, love, sentimentalism, positive emotions as a whole, fear, anger, sadness, and negative emotions as a whole) the SCI group always showed either no change or an increase; this increase was significantly higher in SCI than in control subjects for sadness. No differences were observed between the two groups in the subjective assessment of the pictures. The implications of the results for the James versus Cannon controversy on the theory of emotions are discussed.