Hemispheric Laterality and Cognitive Style

The purpose of the present study was to determine the nature and degree of relationship between cerebral hemispheric style and several traditional dimensions of cognitive style. A large battery of laterality preference, cognitive style, verbal and nonverbal ability, and selected additional tests was administered to 97 (52 female, 45 male) right-handed undergraduate volunteers, with subsequent analysis of relationships among the measures by simple correlation, factor analysis, and multiple regression methods. Laterality measures included the Zenhausern, Verbalizer-Visualizer Questionnaire, and a lateral eye movement observation measure. Data analyses utilized individual laterality test scores as well as a composite laterality index. Eleven cognitive style tests were administered, including measures of field independence, distractibility, complexity, flexibility, and other dimensions. Additional tests administered included measures of verbal and visual synthesizing ability, anxiety, repression-sensitization, and social desirability. The main findings of the study were as follows: (1) Intercorrelations of the cognitive style measures were generally very low, ranging from .00 to -.54; (2) Only one cognitive style factor reliably emerged, accounting for about 10% of the common cognitive style test variance. This factor was called Open vs. Closed-Mindedness and was defined primarily by Dogmatism, Rigidity, and Ambiguity Tolerance scores; (3) Maximum multiple prediction of individual and composite laterality scores from individual cognitive style tests, cognitive style factor scores, and additional scores accounted for 11% to 25% of laterality variance; (4) Sex differences were nonsignificant on all measures with the following exceptions: Females performed the Stroop Test more quickly, were narrower categorizers on the Category Width Scale, and obtained higher trait anxiety scores than males. General conclusions drawn were that hemispheric and cognitive style, as measured in the present study, are largely unrelated, and that individuals manifest considerable diversity in cognitive style. The findings caution against oversimplification and overgeneralization in reference to both hemispheric and cognitive style and their interrelationship. Low intercorrelations of measures within both domains do call into question the adequacy of available tests of these constructs and suggest the need for further test development based upon current neuropsychological knowledge

ILC Reference Design Report Volume 4 - Detectors

This report, Volume IV of the International Linear Collider Reference Design Report, describes the detectors which will record and measure the charged and neutral particles produced in the ILC's high energy e+e- collisions. The physics of the ILC, and the environment of the machine-detector interface, pose new challenges for detector design. Several conceptual designs for the detector promise the needed performance, and ongoing detector R&D is addressing the outstanding technological issues. Two such detectors, operating in push-pull mode, perfectly instrument the ILC interaction region, and access the full potential of ILC physics.This report, Volume IV of the International Linear Collider Reference Design Report, describes the detectors which will record and measure the charged and neutral particles produced in the ILC's high energy e+e- collisions. The physics of the ILC, and the environment of the machine-detector interface, pose new challenges for detector design. Several conceptual designs for the detector promise the needed performance, and ongoing detector R&D is addressing the outstanding technological issues. Two such detectors, operating in push-pull mode, perfectly instrument the ILC interaction region, and access the full potential of ILC physics

ILC Reference Design Report Volume 3 - Accelerator

The International Linear Collider (ILC) is a 200-500 GeV center-of-mass high-luminosity linear electron-positron collider, based on 1.3 GHz superconducting radio-frequency (SCRF) accelerating cavities. The ILC has a total footprint of about 31 km and is designed for a peak luminosity of 2x10^34 cm^-2 s^-1. The complex includes a polarized electron source, an undulator-based positron source, two 6.7 km circumference damping rings, two-stage bunch compressors, two 11 km long main linacs and a 4.5 km long beam delivery system. This report is Volume III (Accelerator) of the four volume Reference Design Report, which describes the design and cost of the ILC.The International Linear Collider (ILC) is a 200-500 GeV center-of-mass high-luminosity linear electron-positron collider, based on 1.3 GHz superconducting radio-frequency (SCRF) accelerating cavities. The ILC has a total footprint of about 31 km and is designed for a peak luminosity of 2x10^34 cm^-2 s^-1. The complex includes a polarized electron source, an undulator-based positron source, two 6.7 km circumference damping rings, two-stage bunch compressors, two 11 km long main linacs and a 4.5 km long beam delivery system. This report is Volume III (Accelerator) of the four volume Reference Design Report, which describes the design and cost of the ILC

International Linear Collider Reference Design Report Volume 2: PHYSICS AT THE ILC

This article reviews the physics case for the ILC. Baseline running at 500 GeV as well as possible upgrades and options are discussed. The opportunities on Standard Model physics, Higgs physics, Supersymmetry and alternative theories beyond the Standard Model are described.This article reviews the physics case for the ILC. Baseline running at 500 GeV as well as possible upgrades and options are discussed. The opportunities on Standard Model physics, Higgs physics, Supersymmetry and alternative theories beyond the Standard Model are described

ILC Reference Design Report Volume 1 - Executive Summary

The International Linear Collider (ILC) is a 200-500 GeV center-of-mass high-luminosity linear electron-positron collider, based on 1.3 GHz superconducting radio-frequency (SCRF) accelerating cavities. The ILC has a total footprint of about 31 km and is designed for a peak luminosity of 2x10^34 cm^-2s^-1. This report is the Executive Summary (Volume I) of the four volume Reference Design Report. It gives an overview of the physics at the ILC, the accelerator design and value estimate, the detector concepts, and the next steps towards project realization.The International Linear Collider (ILC) is a 200-500 GeV center-of-mass high-luminosity linear electron-positron collider, based on 1.3 GHz superconducting radio-frequency (SCRF) accelerating cavities. The ILC has a total footprint of about 31 km and is designed for a peak luminosity of 2x10^34 cm^-2s^-1. This report is the Executive Summary (Volume I) of the four volume Reference Design Report. It gives an overview of the physics at the ILC, the accelerator design and value estimate, the detector concepts, and the next steps towards project realization