Multiple mechanisms for recency with vowels and consonants

Three experiments were conducted to test the hypothesis that the difference in recency effect between vowel-contrasting and stop-contrasting lists of syllables in immediate ordered recall can be explained by item discriminability and regular short-term memory mechanisms, without any recourse to echoic memory or precategorical acoustic storage (PAS). In Experiment 1, the short-term memory mechanisms were manipulated by reducing amount of output interference and length of retention interval. The partial-report technique was used. The most important finding was the usual final-position recency effect (difference in recall between the fifth and sixth serial positions) for the vowel lists but not for the stop lists, regardless of the type of report. Thus the PAS theory could not be rejected. In Experiments 2 and 3, the last item was differentiated from the other items of the list, either by lengthening the interstimulus interval between the last and the next-to-last (Experiment 2) or by increasing the intensity of the last item (Experiment 3). In both cases, an increase of the final-position recency effect was found even for stop lists. Since a drop in recall errors was also obtained for the fourth item when its intensity was increased (von Restorff effect), this final-position recency effect for stop lists is likely to be due to item discriminability, and not to echoic memory for the last item. Item discriminability appeared to be the critical factor.     

THE CONSTANCY OF STRUCTURE OF PERCEIVED PARENTAL REARING STYLE IN GREEK AND SPANISH SUBJECTS AS COMPARED WITH THE DUTCH

To be able to contribute to the cross-cultural study of child-rearing practices and psychopathology, this study sought to examine the cross-national generalizability of parental rearing constructs by analyzing self-report data on the EMBU, an instrument designed to assess memories of one's parents' rearing behavior. Of the four primary factors identified originally with Dutch individuals, namely Rejection, Emotional Warmth, Overprotection and Favoring Subject, the first three were replicated in a similar form in a Greek and a Spanish sample of normal research volunteers. Other properties of the factors, their corresponding scales, and the items constituting the scales were such that it would be warranted to carry out mean scale level or pattern comparisons between subjects from the respective countries on the three constructs evidencing cross-national constancy. Scale-level factor analysis of these constructs produced identical two- factor compositions (CARE and PROTECTION) across the Greek, the Spanish and the Dutch samples which further supported this conclusion.     

Comparison processes on visual mental images

Three experiments were conducted to test whether visual mental images and visual perceptual representations possess equivalent structural properties and undergo functionally equivalent comparison processes. In Experiment 1, subjects were required to perform asame-different letter classification in which the two letters were shown in succession. The first letter in the pair either was actually presented (perceptual condition) or had to be actively generated (imaginal condition). Both conditions showed that (1) response latencies fordifferent decisions decreased as a function of the degree of difference (segment effect), and (2) same decisions were faster than the fastestdifferent ones (fast same effect). In Experiment 2, the imaginal condition only was employed, but no imagery instructions were given and very strict time constraints were assigned. In spite of these restrictions, subjects apparently generated and used visual images, as attested by the fact that the results were comparable to those of the previous experiment. In Experiment 3, three experimental manipulations were introduced to prevent the use of visual images. Such manipulations proved effective, as shown by the disappearance of the segment effect. It was concluded that in the visual modality images and percepts are equivalent in structure and are processed in a very similar way.     

A pragmatic interpretation of intuitionistic propositional logic

We construct an extension ^P of the standard language of classical propositional logic by adjoining to the alphabet of a new category of logical-pragmatic signs. The well formed formulas of are calledradical formulas (rfs) of ^P;rfs preceded by theassertion sign constituteelementary assertive formulas of ^P, which can be connected together by means of thepragmatic connectives N, K, A, C, E, so as to obtain the set of all theassertive formulas (afs). Everyrf of ^P is endowed with atruth value defined classically, and everyaf is endowed with ajustification value, defined in terms of the intuitive notion of proof and depending on the truth values of its radical subformulas. In this framework, we define the notion ofpragmatic validity in ^P and yield a list of criteria of pragmatic validity which hold under the assumption that only classical metalinguistic procedures of proof be accepted. We translate the classical propositional calculus (CPC) and the intuitionistic propositional calculus (IPC) into the assertive part of ^P and show that this translation allows us to interpret Intuitionistic Logic as an axiomatic theory of the constructive proof concept rather than an alternative to Classical Logic. Finally, we show that our framework provides a suitable background for discussing classical problems in the philosophy of logic.This paper is an enlarged and entirely revised version of the paper by Dalla Pozza (1991) worked out in the framework of C.N.R. project n. 89.02281.08, and published in Italian. The basic ideas in it have been propounded since 1986 by Dalla Pozza in a series of seminars given at the University of Lecce and in other Italian Universities. C. Garola collected the scattered parts of the work, helped in solving some conceptual difficulties and refining the formalism, yielded the proofs of some propositions (in particular, in Section 3) and provided physical examples (see in particular Remark 2.3.1).     

Australian professional women's evaluations of male and female written products

Goldberg's provocative evidence of 1968 suggesting that female evaluators may be biased against females has initiated extensive research efforts in the last two decades to investigate the nature and extent of any possible prejudice. Recent reviews have concluded that the accumulated evidence is not strongly supportive of the initial claims. However, most of the available research has been conducted in only one country (America), and most of the subject samples have been from a restricted group (college age students). This study was designed to test for evaluative prejudice in a different society, with professional women of Anglo-Australian background, and across the age range from 20 to 60 years. Despite these variations, no evidence of bias against women was detected. The result are discussed with reference to changing societal attitudes and legislation.     

Motivation for Change: Implications forSubstance Abuse Treatment

Psychological science has made significant progress exploring the role of motivation in recovery from substance abuse and dependence over the past 20 years. Although recovery is complicated by physiological and psychological dependence, the intentions and motivation of the abuser are a critical part of this process. Motivation for change plays an important part in the process of recognizing the need for change, seeking treatment, and achieving successful sustained change. This article reviews how motivational readiness to change, as conceptualized within the transtheoretical model, contributes to the process of recovery. Important distinctions between intrinsic and extrinsic motivation, imposed and intentional change, and readiness for change versus readiness for treatment are highlighted.     

Visuospatial priming of the mental number line

It has been argued that numbers are spatially organized along a "mental number line" that facilitates left-hand responses to small numbers, and right-hand responses to large numbers. We hypothesized that whenever the representations of visual and numerical space are concurrently activated, interactions can occur between them, before response selection. A spatial prime is processed faster than a numerical target, and consistent with our hypothesis, we found that such a spatial prime affects non-spatial, verbal responses more when the prime follows a numerical target (backward priming) then when it precedes it (forward priming). This finding emerged both in a number-comparison and a parity judgment task, and cannot be ascribed to a "Spatial-Numerical Association of Response Codes" (SNARC). Contrary to some earlier claims, we therefore conclude that visuospatial-numerical interactions do occur, even before response selection.     

Attachment in foster children associated with caregivers' sensitivity and behavioral problems

This study focused on attachment of foster children by examining factors associated with attachment relationships of children raised from birth by the same parents. The sample included 61 children between 26 to 88 months of age and their foster caregivers. Attachment security and caregiver sensitivity were coded on the basis of, respectively, a home‐observation (Attachment Q‐Set) and a laboratory procedure (Three boxes). Other measures included caregiver reports of child externalizing and internalizing behavior problems and symptoms of attachment disorder, including inhibited and disinhibited attachment as well as secure base distortions. For a subsample of children, teacher ratings of behavior problems also were available. Foster parent sensitivity was positively associated with attachment security, but only if symptoms of disordered attachment were partialled out. Symptoms of inhibited and disinhibited attachment as well as secure base distortions were positively related to parent reports of externalizing and internalizing behavior problems whereas attachment security was negatively related to teacher reports of externalizing behavior problems. Attachment theoretical tenets appeared valid with foster parent–child relationships, except for children with symptoms of attachment disorder.     

Apparent motion by edge discontinuities

When the eyes move vertically across a jagged diamond, a local shift (LS) of edge discontinuities and a global shape distortion (GD) (ie expansion/contraction opposite to that expected by the aperture effect) are perceived. These phenomena cannot be accounted for by a local motion signals integration rule based either on the intersection of constraint lines or on the velocity vector summation. The threshold for GD perception and the salience of LS and GD (1 to 10 scale) were measured in two experiments by different methods and displays. In experiment 1 we induced GD through mimicking LS with a kinetic pattern constituted of a set of circular illusory apertures revealing drifting gratings. The point of subjective equality for compression/expansion was reached for gratings the linear extrapolations of which form an angle of 94.4 degrees. In experiment 2 observers followed a dot moving along the vertical elongation axis of a static jagged diamond (with 70 degrees or 90 degrees angles), varying in the shape (triangular, wave, square), frequency, and amplitude of edge discontinuities. GD scores were correlated with LS scores that were inversely related to frequency/amplitude ratios of triangular edge discontinuities. Data are partially accounted for by averaging neighbouring local motion-capture vectors. Results prove that there are strong interrelations between phenomena in which visual motion affects visual localisation and phenomena involving apparent deformation of global shape.     

Recognition memory and prefrontal cortex: dissociating recollection and familiarity processes using rTMS

Recognition memory can be supported by both the assessment of the familiarity of an item and by the recollection of the context in which an item was encountered. The neural substrates of these memory processes are controversial. To address these issues we applied repetitive transcranial magnetic stimulation (rTMS) over the right and left dorsolateral prefrontal cortex (DLPFC) of healthy subjects performing a remember/know task. rTMS disrupted familiarity judgments when applied before encoding of stimuli over both right and left DLPFC. rTMS disrupted recollection when applied before encoding of stimuli over the right DLPFC. These findings suggest that the DLPFC plays a critical role in recognition memory based on familiarity as well as recollection.