The Spiral After-Effect presents the visual phenomenon of the spiral after-effect in clinical investigations. This book explains how and under what conditions the illusion happens or can be modified. Organized into eight chapters, this book begins with an overview of the features of illusion that are similar to many of the characteristics of other movement perceptions, including vividness, velocity, and persistence. This text then examines the complex structure and the geometric function of the inducing stimulus. Other chapters consider the effects of drugs on the spiral illusion, which is rather strange when one considers the wide use of the phenomenon in patient groups who may be receiving substantial admixtures of compound for therapeutic purposes. This book discusses as well the relationship between intelligence and perception of the spiral after-effect. The final chapter deals with the conditioned after-effect. Clinical psychologists and readers who are interested in personality research will find this book useful.
This book reads like a detective story in its pursuit of information concerning a conspiracy associated with the physical condition of FDR and its subsequent effect on the country at that time and into the present. A search for this information led to knowledge concerning the political manipulations surrounding the nomination of Harry S. Truman for the vice presidency in 1944. Details are presented as to how close Truman came to losing this nomination. A recently discovered secret memo now shows that FDR was aware of his deteriorating physical condition that impacted the importance of Trumans vice presidential nomination. It was Trumans belief that FDR personally chose him for this position, but he was led to believe that he was not FDRs choice but became the vice president because of political chicanery. Truman tried unsuccessfully at a later date to disprove this belief. The book contains a host of new information regarding FDR and gives further evidence that FDR was well aware of the impending attack by the Japanese on Pearl Harbor in 1941.
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