Blocked vs. interleaved presentation and proactive interference in episodic memory

Although a number of theoretical accounts of proactive interference (PI) in episodic memory have been proposed, existing empirical evidence does not support conclusively a single view yet. In two experiments we tested the predictions of the temporal discrimination theory of PI against alternative accounts by manipulating the presentation schedule of study materials (lists blocked by category vs. interleaved). In line with the temporal discrimination theory, we observed a clear buildup of (and release from) PI in the blocked condition, in which all the lists of the same category were presented sequentially. In the interleaved condition, with alternating lists of different categories, a more gradual and smoother buildup of PI was observed. When participants were left free to choose their presentation schedule, they spontaneously adopted an interleaved schedule, resulting again in more gradual PI. After longer delays, we observed recency effects at the list level in overall recall and, in the blocked condition, PI-related effects. The overall pattern of findings agrees with the predictions of the temporal discrimination theory of PI, complemented with categorical processing of list items, but not with alternative accounts, shedding light on the dynamics and underpinnings of PI under diverse presentation schedules and over different time scales.     

Unconscious Semantic Priming Influences Performance of Visuomotor Tasks Differently but the Effects are Similar in Young and Older Adults

We examined the effects of semantic priming of attention on two sequentially presented visuomotor tasks, traffic judgments and saccadic adaptation. Priming was accomplished with the scrambled sentence task: participants formed meaningful sentences from a list of words where a word denoting wide attention focus was involved. The results showed that semantic priming influenced positively saccade adaptation (its’ benefit increased) while it attenuated visuomotor performance in the traffic task (RT of hand movements increased). We found the effects of priming on both tasks’ performance to be comparable in young and older participants. It was suggested that semantic priming effect on visuomotor tasks depended on the cognitive resources which were needful as for the priming as for the primed task.     

Are Persons Low in Self-Control Rational and Deterrable?

This work addresses a question raised by Wright et al. (2004 Wright , Richard T. and Scott H. Decker. 1994 . Burglars on the Job: Street life and Residential Breakins . Boston : Northeastern University Press . [Google Scholar]) pertaining to the rationality and deterrability of individuals with low self-control. According to some, all persons are presumed to be equally rational; according others, individuals who possess little self-control, who are impulsive and present-oriented are less likely to be influenced by a perceived risks and costs of punishment; and according to a third group of scholars, those who do possess such self-control/restraint are either not motivated toward offending or are inhibited by moral constraints and are, thus, unresponsive to sanction threats. These rival predictions are examined with the use of self-report survey data on academic dishonesty from a sample of undergraduate college students. Across a tremendous number of models employing a variety of functional forms for the effects of perceived sanction threats, we consistently observed that the effects of perceived sanction threats on college students' self-reported academic dishonesty did not vary by their level of offending propensity (self-control).     

Working Memory Control Deficit in Kindergarten ADHD Children

The present study tests the hypothesis that a working memory deficit is also found in children with attention deficit/hyperactivity disorder (ADHD) symptoms as young as 5 and is related to the control of interfering information. One group of 23 kindergarten children identified by the presence of ADHD symptoms and one group of 23 children matched for gender, age, and socioeconomic status were administered a visuospatial working memory task that required the selective recall of information. Children with ADHD symptoms performed more poorly than controls and were affected to a particularly high extent by intrusion errors (i.e., recalling of information initially encoded but that needed to be consequently suppressed during the task).     

Escaping from Rama: Portraits of Indian women

This study examines visual, post-colonial portraits of the Indian women of the Sanskrit epics, in order to show the sociocultural, historical-ideological roots of this aesthetic. After independence, Hindu movements found in the epics a female archetype, who stands for the Hindu community. Post-colonial visual representations maintained this idealistic characterisation within a binary system, according to which women can be angelic guarantors of the social order or devilish, sexually uncontrolled creatures. This ambiguity derives from the double nature of the female principle of the world, shakti, and the visual storytelling tradition or chitrakatha. Using the same Indian storytelling tradition, female points of view have begun to criticise this nationalistic, ‘male gaze’. In the graphic novel Sita's Ramayana, Rama and male activities, particularly war, are secularised and criticised as selfish by female characters, foremost of whom is Sita, a model of the devoted and pure bride or pativrata.     

Same kinematics but different objects during action observation: Detection times and motor evoked potentials

Motor resonance refers to the fact that an observed action is online subliminally reenacted. The aim of the present paper was to verify if, on equal terms of kinematics, the to-be-grasped object's intrinsic properties are influencing the observers' motor behaviour. A detection time and a single pulse transcranial magnetic stimulation experiment were performed to verify the effects of a change of object's intrinsic properties artificially made on a video showing a grasping action. In particular, the object substituting the original one was not graspable by the showed movement. Results indicated an influence of object's intrinsic properties: Detection times were delayed and motor evoked potentials were reduced when the movement shown was not suitable to grasp the object. These results are interpreted as an evidence that during grasping action observation the motor system of the observer is influenced not only by the seen movements but also by the to-be-grasped object.     

Representing young and older adult faces: Shared or age-specific prototypes?

ABSTRACT

Young adults recognize young adult faces more accurately than older adult faces and are more sensitive to how individual young faces deviate from a norm/prototype. Here we used an adaptation paradigm to examine whether young and older adult faces are represented by separable norms and the extent to which the coding dimensions for these two categories overlap. In Experiment 1, following adaptation to oppositely distorted young and older faces (e.g., expanded young and compressed older faces), adults’ normality judgments simultaneously shifted in opposite directions for the two face categories, providing evidence for separable norms. In Experiment 2, participants were adapted to distorted faces from a single age category (e.g., compressed young); aftereffects transferred across face age but were larger for the face age that matched adaptation. Collectively, these results provide evidence that young and older faces are processed with regard to separable norms that share some underlying coding dimensions.     

A Multicriteria Spatial Decision Support System Development for Siting a Landfill in the Province of Torino (Italy)

The present paper proposes a spatial multicriteria approach for supporting Decision‐Makers in the siting process of a Municipal Solid Waste landfill in the Province of Torino (Italy). In particular, the contribution illustrates the development of a Multicriteria‐Spatial Decision Support System based on the integration of Geographic Information Systems and a specific Multicriteria Decision Analysis technique, named Analytic Network Process (ANP). This technique, which represents the generalization of the more well‐known Analytic Hierarchy Process to dependences and feedbacks, is particularly suitable for dealing with complex decision problems which are characterized by inter‐relationships among the elements at stake. The application allows the dependence relationships among the criteria to be assessed, and the relative importance of all the elements that play an influence on the final choice to be evaluated. The purpose of the study is to generate a suitability map of the area under analysis for locating a waste landfill, paying particular attention to the contribution that the spatial ANP offers to sustainability assessments of undesirable facilities. To this end, the simple network structure has been used and both exclusionary and non‐exclusionary criteria have been identified and grouped into clusters. The results are obtained in the form of suitability maps analysed through ilwis 3.3 software (52North, ITC, Enschede, The Netherlands) and have been further verified through a sensitivity analysis with reference to the clusters priorities in order to test the robustness of the proposed model. The main findings of this research have proved that the spatial ANP is a useful tool to help technicians to make their decision process traceable and reliable. Moreover, this approach helps Decision‐Makers to undertake a sound reflection of the siting problem. Finally, the implementation of the spatial ANP technique gives an originality value to the present research because it represents one of the first applications at both the national and international level. Copyright © 2011 John Wiley & Sons, Ltd.     

Cognitive and neural determinants of response strategy in the dual-solution plus-maze task

Response strategy in the dual-solution plus maze is regarded as a form of stimulus-response learning. In this study, by using an outcome devaluation procedure, we show that it can be based on both action-outcome and stimulus-response habit learning, depending on the amount of training that the animals receive. Furthermore, we show that deactivation of the dorso-medial and the dorso-lateral striatum with Botulinum neurotoxin A, mimicked or abolished, respectively, the effects of practice on the sensitivity of the response strategy to outcome devaluation. These findings have relevant implications for the understanding of the learning mechanisms underlying different overt behaviors in this widely used maze task.     

Detecting fakers of the autobiographical IAT

Autobiographical memories might be identified using a variant of the implicit association test (IAT), or the autobiographical IAT (aIAT). The aIAT provides a measure of association between true sentences and sentences describing an autobiographical event. This tool might be used to evaluate whether specific autobiographical information is encoded within the respondent's mind/brain. This paper examines possible problems arising when the aIAT is used as a lie‐detector technique. The results indicate that, when given previous instruction or training with an aIAT, examinees can alter their results and beat the ‘memory‐detector’. However, we have been able to detect successful fakers of aIAT on the basis of their specific response patterns. Our algorithm has the ability to spot the faker in a satisfactory manner. If, as demonstrated here, faking can be detected, then the real autobiographical event might also be identified when the examinee attempts to alter their results. Copyright © 2010 John Wiley & Sons, Ltd.