A hit-and-miss investigation of asymmetries in wheelchair navigation

In contrast to the leftward inattention caused by right parietal damage, normal brain function shows a subtle neglect of the right and left sides in peripersonal and extrapersonal space, respectively. This study explored how these attentional biases cause healthy individuals to collide with objects on the right. In Experiment 1, participants navigated manual and electric wheelchairs through a narrow doorway. More rightward collisions were observed for the electric, but not the manual, wheelchair. Experiment 2 demonstrated that the rightward deviation for electric wheelchairs increased for wider doorways. Experiment 3 established that the rightward deviation is not the result of task-related vestibular input, using a remote control device to operate the wheelchair. The rightward deviation persisted in Experiment 4 when the doorway was removed, suggesting that the bias is the result of a mis-bisection of space. In Experiment 5, the rightward bias was replicated using an electric scooter, which is steered using handlebars. Finally, Experiment 6 required participants to point to the middle of the doorway, using a laser, before moving the scooter. Rightward mis-bisection was observed in both conditions. Rightward mis-bisection of lines in extrapersonal space provides the most parsimonious explanation of the rightward collisions and deviations.     

Mattering to Others: Implications for the Counseling Relationship

Although first conceived in the 1980s, mattering to others has only recently earned well‐deserved attention in social science research and literature. Subsequently, it seems that mattering may serve as a powerful dynamic in strengthening counseling relationships. This article reviews the empirical validation study of mattering recently conducted by G. C. Elliott, S. Kao, and A. M. Grant (2004), which was published in the journal Self and Identity. Implications for counselors, the counseling relationship, and counseling research are considered.     

Comparing motivations of individual programmers and firms to take part in the open source movement: From community to business

The first urgent question for any scholar willing to study the Open Source (OS) movement has been clearly put by Glass (1999, 104): I don’t know who these crazy people are who want to write, read and even revise all that code without being paid anything for it at all. A growing body of economic literature has been addressing the motivations at the basis of the participation in the OS movement since when the new paradigm has become successful and triggered the entrance on the market of firms offering Open Source based products and services (Open Source firms). However, most of the empirical analyses focus on individual developers and neglect companies that adopt Open Source business models. This paper contributes to the literature by providing empirical evidence on the incentives of the firms that engage in OS activities. Findings on firms’ motivations are compared His recent research interests are in the economics of science, industrial dynamics in high technology industries, and theory and empirics of diffusion of technologies with network externality. He has authored or edited five books and written 80 papers in international journals and conferences. His studies have been published in several top refereed journals. He is member elected of the Executive Committee of the PRIME (Policies for Research and Innovation in the Move towards the European Research Area) Network of Excellence (6^th Framework Programme) and has previously coordinated or contributed actively to several EU research projects (within TACIS-ACE, DG III, DG XII and DG XXII). She got her Ph.D. in economics and management of innovation at Sant’ Anna School in November 2003. At present, she collaborates also with the Department of Electrical Systems and Automation of the University of Pisa. Her research interests deal with the economics of open source software (OSS) and focus on profit-oriented firms that offer open source-based products and services (open source firms). Under a theoretical point of view, she is now investigating the motivations that lead individuals to provide a continuous stream of contributions to collective goods that are immaterial in their nature (e.g., participation in OSS projects, participation in the scientific community). with the results of the surveys on individual programmers aiming at analyzing the role played by different classes of incentives (social, economic and technological) in determining the involvement in the movement of different typologies of agents (Individual vs. organizations).     

The social and economic impact of trichotillomania: results from two nonreferred samples

Behavior therapy has been widely used as a treatment for trichotillomania. However, behavioral treatments for TTM have tended to focus on behavior reduction, while not paying as much attention to social and economic impact. The current study sought to clarify the social and economic impact of Trichotillomania (TTM) in two samples of persons with TTM. Members of the first sample attended a TTM patient conference (N = 36) and members of the second responded to an online survey (N = 381). Both samples completed self‐report measures that examined the impact of TTM on avoiding activities and relationships, as well as financial costs. Results indicated that both groups reported similar amounts of avoidance in social situations, sought help from multiple health professionals, spent considerable time engaged in hair pulling activities, and had interference in both work and school. The study suggests a number of ways to decrease the negative impact of TTM. Copyright © 2006 John Wiley & Sons, Ltd.     

Why don't we see changes?: The role of attentional bottlenecks and limited visual memory

Seven experiments explore the role of bottlenecks in selective attention and access to visual short-term memory in the failure of observers to identify clearly visible changes in otherwise stable visual displays. Experiment One shows that observers fail to register a color change in an object even if they are cued to the location of the object by a transient at that location as the change is occurring. Experiment Two shows the same for orientation change. In Experiments Three and Four, attention is directed to specific objects prior to making changes in those objects. Observers have only a very limited memory for the status of recently attended items. Experiment Five reveals that observers have no ability to detect changes that happen after attention has been directed to an object and before attention returns to that object. In Experiment Six, attention is cued at rates that more closely resemble natural rates and Experiment Seven uses natural images. Memory capacity remains very small (<4 items).     

“I-ness” and the dissociative process. Working with defensive and creative dissociations in the analytic process

The American Journal of Psychoanalysis - We suggest that the analytic dialogue develops as a continuous movement that we call “Dissociative Process”, and that this process is the...     

Searching where the treasure is: on the emergence of human companion animal partnership (HCAP)

Animal Cognition - In our view, the discipline, often referred to as human–animal interaction (HAI), lacks a well-defined conceptual framework. It is too narrow both with respect to the...     

Maximization and Search for Alternatives in Decision Situations With and Without Loss of Options

Maximizing tendency has been associated with greater accumulation of choice alternatives prior to selection of a preference. It is not known whether this search behavior extends to situations in which accumulation of new choice alternatives comes with the potential loss of existing ones. In Study 1, we replicate the original finding of greater accumulation of choice alternatives, using a computer‐based laboratory task. We then provide evidence, in Studies 2 and 3, that when potential loss of existing options is incorporated into the task, maximization is associated with less rather than more search for additional options. Maximization components of decision difficulty and alternative search, but not high standards or satisficing, explain this behavior. Other task measures are also collected, but few maximization‐related differences are observed. The findings support an interpretation of maximizers as decision makers who are as concerned with the potential loss of existing options as with the loss of undiscovered future ones. Copyright © 2015 John Wiley & Sons, Ltd.