Levels of representation in word processing

Abstract

Four experiments are described examining the effects of words frequency, orthographic structure, and letter spacing on a range of tasks designed to tap different levels of representation in word processing. In Experiment 1, the task was lexical decision. Effects of both frequency (high-frequency words were recognized faster than low-frequency words) and orthographic regularity (illegal non-words were rejected faster than legal non-words) were found. In Experiment 2 subjects had to detect a rotated letter within the letter strings. Effects of orthographic structure emerged, with a marked disadvantage for illegal non-words with respect to the other types of string. No difference was found among high-frequency words, lowfrequency words and legal non-words. In Experiment 3, subjects had to detect a letter elevated above the horizontal plan with respect to the rest of the string. Effects of both spatial arrangement of letters and number of letters were found (spaced strings were responded to less accurately than non-spaced strings and seven-letter extra-spaced strings were responded to slower than the other strings). Neither lexical nor orthograpic variables affected this task. In Experiment 4 subjects had to detect the presence of a bold segment contained in one of the letters in the strings. Performance was unaffected by both lexical and spatial variables. The pattern of results is discussed with reference to a multi-stage model of word recognition in which lexical and spatial variables affect processing at different stages. At a feature map level, in which features are extracted from the discontinuities of light intensities, processing is independent of both spatial and lexical factors. At a letter-shape map level, in which spatial relationships between features are coded, spacing between letters affects encoding. At a graphemic map level, in which letter identities and their relative positions within strings are coded, orthographic variables have an effect. Lexicality and frequency affect only subsequent stages of processing, when stored lexical information is retrieved (e.g. for lexical decision).     

The cradle of causal reasoning: newborns’ preference for physical causality

Perception of mechanical (i.e. physical) causality, in terms of a cause–effect relationship between two motion events, appears to be a powerful mechanism in our daily experience. In spite of a growing interest in the earliest causal representations, the role of experience in the origin of this sensitivity is still a matter of dispute. Here, we asked the question about the innate origin of causal perception, never tested before at birth. Three experiments were carried out to investigate sensitivity at birth to some visual spatiotemporal cues present in a launching event. Newborn babies, only a few hours old, showed that they significantly preferred a physical causality event (i.e. Michotte's Launching effect) when matched to a delay event (i.e. a delayed launching; Experiment 1) or to a non‐causal event completely identical to the causal one except for the order of the displacements of the two objects involved which was swapped temporally (Experiment 3). This preference for the launching event, moreover, also depended on the continuity of the trajectory between the objects involved in the event (Experiment 2). These results support the hypothesis that the human system possesses an early available, possibly innate basic mechanism to compute causality, such a mechanism being sensitive to the additive effect of certain well‐defined spatiotemporal cues present in the causal event independently of any prior visual experience.     

Self-implication and heart rate variability during simulated exposure to flight-related stimuli

In the present study, the relationship between self-implication during simulated exposure to feared stimuli and Heart Rate Variability (HRV) was explored within the framework of the dynamical systems model of emotion regulation proposed by Thayer and Lane (Thayer, J.F., and Lane, R.D. (2000). A model of neurovisceral integration in emotion regulation and dysregulation. Journal of Affective Disorders, 61, 201–216.). An analogue sample of flight phobics (n=15) and a matched non-phobic control group (n=15) were presented with flight-related pictures, flight-related sounds or flight-related pictures and sounds. Significant differences on self-implication during exposure to flight-related sounds were found between low and high HRV fearful flyers, the former being more self-implied. However, the expected HRV decreases in the phobic participants exposed to feared stimuli were not found. These results emphasize the need to distinguish between high and low HRV fearful flyers in order to make a better use of the simulated exposure treatments.     

The Accuracy of the Life Orientation Test–Revised (LOT–R) in Measuring Dispositional Optimism: Evidence From Item Response Theory Analyses

The accuracy of the Life Orientation Test–Revised (LOT–R) in measuring dispositional optimism was investigated applying item response theory (IRT). The study was conducted on a sample of 484 university students (62% males, M age = 22.79 years, SD = 5.63). After testing the 1-factor structure of the scale, IRT was applied to evaluate the functioning of the LOT–R along the pessimism–optimism continuum. Item parameter estimates and the test information function showed that each item and the global scale satisfactorily measured the latent trait. Referring to the IRT estimated trait levels, the validity of the LOT–R was studied examining the relationships between dispositional optimism and psychological well-being, sense of mastery, and sense of coherence. Overall findings based on IRT analyses provide evidence of the accuracy of the LOT–R and suggest possible modifications of the scale to improve the assessment of dispositional optimism.     

BIBLICAL POETRY,SPINOZIST HERMENEUTICS,AND CRITICAL SCHOLARSHIP

This article considers a little known chapter in the long history of the question of the nature of biblical poetry. The debate between the Jewish scholar Raffaele Rabeni and the Christian Hebraist Biagio Garofalo (1710–1714) exemplifies shifting attitudes and concerns of eighteenth century Jewish and Christian polemists. Ostensibly, the exchange concerned an apparently innocuous topic, the “Poetry of the Hebrews”, namely, whether Biblical poetry was rhymed or metrical. At a closer look, the two scholars, equally familiar with Spinoza’s biblical critique and the latest philological and critical scholarship, clashed over the textual authority of the Hebrew Bible.

This Italian polemical exchange not only foreshadows emerging developments in the field of biblical studies, but it also differs from previous examples because of its public ramifications. The debate was publicized by the Giornale de’ Letterati, Italy’s foremost scholarly journal of the time, which sided with Garofalo. For his part, Rabeni actively opposed the publication’s “modern” approach to sacred and profane history by supporting the Jesuit Father, Giovan Antonio Bernardi, in the course of a heated controversy over the journal’s historiographical stance and objectivity.

Unlike most cases of early modern Jewish–Christian polemics examined by researchers, the Rabeni–Garofalo affair and its ramifications reflect the birth pangs that accompanied the emergence of the modern study of sacred and diplomatic history in Italy, and is best understood within the context of historical and philological‐critical studies that characterized the early stages of the Italian Enlightenment.     

Effects of Music on Physiological Arousal: Explorations into Tempo and Genre

Two experiments explore the validity of conceptualizing musical beats as auditory structural features and the potential for increases in tempo to lead to greater sympathetic arousal, measured using skin conductance. In the first experiment, fast- and slow-paced rock and classical music excerpts were compared to silence. As expected, skin conductance response (SCR) frequency was greater during music processing than during silence. Skin conductance level (SCL) data showed that fast-paced music elicits greater activation than slow-paced music. Genre significantly interacted with tempo in SCR frequency, with faster tempo increasing activation for classical music and decreasing it for rock music. A second experiment was conducted to explore the possibility that the presumed familiarity of the genre led to this interaction. Although further evidence was found for conceptualizing musical beat onsets as auditory structure, the familiarity explanation was not supported.     

Sad Kids,Sad Media? Applying Mood Management Theory to Depressed Adolescents' Use of Media

Mood management studies typically have found that adults will select media that enhance positive moods and reduce negative moods. In this study, adolescents diagnosed with major depressive disorder and control adolescents without psychiatric disorders were called on customized cell phones up to 4 times a day and asked about their current mood state and media use for five extended weekends across an 8-week period. Mood effects on subsequent media use, mood during media consumption, and media effects on subsequent mood were examined. Results indicated that adolescents who consumed fun media tended to do so in a way that sustained, rather than enhanced their prior positive mood levels during and after consumption-if they turned to media. Adolescents in more negative moods did not often use media to improve their moods. When they did, boys were more likely than girls to use media that ultimately reduced negative mood levels. Findings are discussed in light of the literature on mood management, adolescence, and depression.     

A Test of the Network Models of Political Priming

Extensive media coverage of a political issue has been shown to influence, or prime, the criteria used to judge overall performance of political leaders. This political priming effect is traditionally explained with network models of memory, which identify priming intensity and recency as key factors in determining the strength and endurance of a priming effect. However, these two assumptions of network models have not been directly tested in media studies. The potential of priming valence to influence the priming effect also has had little treatment. This experiment evaluated priming intensity, recency, and valence within a typical political priming context. In support of previous psychological findings, priming effects were apparent immediately following positively valenced primes, dissipating quickly thereafter. For negative primes, the influence of the prime on judgment formation was contingent on the individual's political leaning, in that individuals who would likely agree with the message exhibited priming effects and individuals who would likely disagree with the message exhibited little effect. The adequacy of applying associative memory models to political priming studies is discussed.     

Are anxiously attached women better mindreaders?

This research was aimed at providing first evidence concerning the relationship between adults’ self-reported attachment style and their performance on a standard ‘theory of mind’ task. Based on adult attachment theory, we hypothesized that the two dimensions of self-reported adult attachment, anxiety and avoidance, are differently related to ‘theory of mind,’ and that this relationship is moderated by variables concerning the ‘theory of mind’ stimuli. The ‘Experiences in Close Relationships’ questionnaire and the ‘Reading the Mind in the Eyes’ test were administered to 132 young women. In line with our expectations, women’s attachment-related anxiety was associated with better mind reading concerning stimuli that were emotionally neutral or difficult to recognize.