While social psychology has made fundamental contributions to the understanding of basic principles that underlie social behavior, these principles themselves--including expectancies, goals, explanations, arousal, social influence, interdependence, social conflict, persuasion, and social standards--have never been directly reviewed in a comprehensive manner. Filling a significant gap in the literature, this authoritative reference and text illuminates the essential processes, mechanisms, and structures at different levels of analysis--biological, cognitive, motivational, interpersonal, and group/cultural--to provide access to the central principles that guide social psychological investigation. Formatted for easy reference and comparison, each chapter describes alternative conceptualizations of a particular principle and reviews research supporting (and failing to support) these different perspectives. Covering all the significant theories and research programs, the empirical literature is surveyed not for the traditional function of providing comprehensive reviews of content areas, but for its relevance to broad conceptual issues. This enables readers to get a better idea of the "big picture" concerning various social psychological principles, facilitating their ability to keep track of conceptual trends and developments in social psychology. An essential tool for all social psychologists, as well as professionals in related fields, this authoritative handbook also serves as an invaluable text for advanced classes in social psychology.

How do people decide whether to sacrifice now for a future reward or to enjoy themselves in the present? Do the future gains of putting money in a pension fund outweigh going to Hawaii for New Year's Eve? Why does a person's self-discipline one day often give way to impulsive behavior the next? Time and Decision takes up these questions with a comprehensive collection of new research on intertemporal choice, examining how people face the problem of deciding over time. Economists approach intertemporal choice by means of a model in which people discount the value of future events at a constant rate. A vacation two years from now is worth less to most people than a vacation next week. Psychologists, on the other hand, have focused on the cognitive and emotional underpinnings of intertemporal choice. Time and Decision draws from both disciplinary approaches to provide a comprehensive picture of the various layers of choice involved. Shane Frederick, George Loewenstein, and Ted O'Donoghue introduce the volume with an overview of the research on time discounting and focus on how people actually discount the future compared to the standard economic model. Alex Kacelnik discusses the crucial role that the ability to delay gratification must have played in evolution. Walter Mischel and colleagues review classic research showing that four year olds who are able to delay gratification subsequently grow up to perform better in college than their counterparts who chose instant gratification. The book also delves into the neurobiology of patience, examining the brain structures involved in the ability to withstand an impulse. Turning to the issue of self-control, Klaus Wertenbroch examines the relationship between consumption and available resources, showing, for example, how a high credit limit can lead people to overspend. Ted O'Donoghue and Matthew Rabin show how people's awareness of their self-control problems affects their decision-making. The final section of the book examines intertemporal choice with regard to health, drug addiction, dieting, marketing, savings, and public policy. All of us make important decisions every day-many of which profoundly affect the quality of our lives. Time and Decision provides a fascinating look at the complex factors involved in how and why we make our choices, so many of them short-sighted, and helps us understand more precisely this crucial human frailty.

This book provides an introduction to human visual perception suitable for readers studying or working in the fields of computer graphics and visualization, cognitive science, and visual neuroscience. It focuses on how computer graphics images are generated, rather than solely on the organization of the visual system itself; therefore, the text provides a more direct tie between image generation and the resulting perceptual phenomena. It covers such topics as the perception of material properties, illumination, the perception of pictorial space, image statistics, perception and action, and spatial cognition.

During the past 25 years, the field of space and motion perception has rapidly advanced. Once thought to be distinct perceptual modes, space and motion are now thought to be closely linked. Perception of Space andMotion provides a comprehensive review of perception and vision research literature, including new developments in the use of sound and touch in perceiving space and motion. Other topics include the perception of structure from motion, spatial layout,and information obtained in static and dynamic stimulation. Spatial layoutStructure from motionInformation on static and dynamic stimulation (visual, acoustic, and haptic)

Traditionally, visual-spatial perception research has focused quite heavily on the visual information necessary to perceive the environment and the locations of objects within that space. Recent research has illustrated that non-visual factors like emotional states, motivations, and physical abilities can affect both perceptions and behaviors within the environment. Social factors may also impact the way we see the space around us. This research investigates whether psychological closeness affects perceived egocentric (self-to-target) distance, an important component of spatial perception. Across two experiments, participants made several estimates of the distance between themselves and another "target" person. This target person represented either someone with whom the participant shared a relationship (his/her best friend), or a stranger (confederate Alex); I hypothesized that individuals' feelings of psychological closeness to their best friends would lead to judgments of closer visual-spatial proximity to visual representations of their friends than to visual representations of a stranger. Though participants did indeed report feeling significantly greater levels of psychological closeness to their best friends, there was no evidence that psychological closeness affected subsequent visual-spatial distance judgments in the form of verbal reports of distance (Experiment 1), visual matching of the distance (Experiment 2) or blindfolded walking to targets (Experiments 1 and 2). The contribution of these studies to the ongoing debate regarding the robustness and resilience of non-visual contributions to spatial cognition are discussed in the context of methodological limitations of the present studies and directions for future research in this area.