Good reasoning can lead to success; bad reasoning can lead to catastrophe. Yet, it's not obvious how we reason, and why we make mistakes. This new book by one of the pioneers of the field, Philip Johnson-Laird, looks at the mental processes that underlie our reasoning. It provides the most accessible account yet of the science of reasoning.

This book explores the impact of neuroscience research over the past 20 or more years on brain function as it affects moral decisions. Findings show that the mind and brain are very close, if not the same, and that the brain 'makes' the mind. This is bringing about a change of focus from examining mental activity to the physical activity of the brain to understand thinking and behavior. We are discovering that the physical features of the brain play the major (...) role in shaping our thoughts and emotions, including the way we deal with 'moral' issues. This book sets out the historical framework of the transition from 'mentalism' to 'physicalism', shows how the physical brain works in moral decisions and then examines three broad areas of moral decision-making - the brain in 'bad' acts, the brain in decisions involving sexual relations, and the brain in money decision-making. (shrink)

Psychologists live in a globalizing world where traditional boundaries are fading and, therefore, increasingly work with persons from diverse cultural backgrounds. The Universal Declaration of Ethical Principles for Psychologists provides a moral framework of universally acceptable ethical principles based on shared human values across cultures. The application of its moral framework in developing codes of ethics and reviewing current codes may help psychologists to respond ethically in a rapidly changing world. In this article, a model is presented to demonstrate how (...) to use the Universal Declaration as a guide for creating or reviewing a code of ethics. This model may assist psychologists in various parts of the world in establishing codes of ethics that will promote global understanding and cooperation while respecting cultural differences. The article describes the steps involved in the application of the model and provides concrete examples as well as several useful comments and suggestions. This guide for the application of the Universal Declaration may also be used for consultation, education, and training relative to the Universal Declaration of Ethical Principles for Psychologists. (shrink)

Ethical principles are fundamental for the exercise of any profession. Portuguese psychologists have waited for 30 years for professional validation. This paper will define the Portuguese psychologists’ ethical principles, with a universal view as a starting point and then an adaptation to the cultural and professional reality in Portugal. The level of acceptability of these principles will be ascertained in a later paper.