We proposed a novel feature combination comprising movement-related potentials such as the readiness potential, event-related desynchronization features besides the event-related potentials (ERP) features used in a previous study. The performance of predicting braking intention based on our proposed feature combination was superior compared to using only ERP features. Our study suggests that emergency situations are characterized by specific neural patterns of sensory perception and processing, as well as motor preparation and execution, which can be utilized by neurotechnology based braking assistance systems.

Abstract. We investigated the use of enhanced spectral correlation theory for modeling the crustal features of the Antarctic from regional observations of gravity and terrain. The analysis considered lø-gridded free-air gravity anomalies and topographic rock, ice, and water components for the region south of 60øS. We modeled terrain gravity effects at 150-kin altitude by Gauss-Legendre quadrature (GLQ) integration assuming densities of 2800 kg/m 3 for rock, 900 kg/m 3 for ice, and 1030 kg/m • for seawater. These effects are substantial relative to the free-air anomalies and must be compensated by the effects of subsurface density variations. Significant terrain-correlated free-Mr anomalies were revealed by the wavenumber correlation spectrum between the free-air anomalies and the modeled terrain gravity effects, which we interpreted mostly to reflect possible isostatic irabalances of the crust. Subtracting the terrain-correlated free-air anomalies from the total freeair anomalies and topographic gravity effects yielded terrain-decorrelated free-air anomalies and the gravity effects of isostatically compensated terrain features, respectively, which are uncorrelated with each other. The compensating effects that annihilate the latter were attributed to undulations of the Moho, which we estimated by inversion using GLQ integration and a mantle-to-crust density contrast

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Abstract. We investigated the use of spectral correlation analysis for modeling the crustal features of Mare Orientale from lunar 70th degree spherical harmonic topographic and gravity field models derived from Clernentine satellite and earlier investigations. The analysis considered a 64ø-by-64 ø region of the Moon centered roughly on Mare Orientale at an altitude of 100 kin. The topography of the study region, which includes over 11 krn of relief, was modeled for its gravity effects in lunar spherical coordinates by Gauss-Legendre quadrature integration assuming a terrain density of 2.8 g/cm 3. We observed substantial positive and negative correlations between terrain gravity effects and free-air gravity anomalies that seriously limit the utility of simple Bouguer gravity anomalies for subsurface studies. Using the wavenumber correlation spectrum between the two data sets, we designed correlation filters to extract the common features. Possible interpretations for the terrain-correlated free-air gravity anomalies include isostatic crustal mass irnbalances that may be equilibrated by radial adjustments of the Moho of up to 44 kin, assuming Airy-Heiskanen compensation and a mantle density contrast of 0.5 g/crn 3 with the crust. These Moho adjustments define mass variations that account for most of the rnascon and flanking negative free-air gravity anomalies. Furthermore, their remarkable correlation with the topographic rings of Mare Orientale points to the possible influence of a strong local stress field of the crust in the development of the ring structures. Subtracting the terrain-correlated free-air ar•ornalies from the free-air gravity anomalies and terrain gravity effects yielded terrain-decorrelated free-air and isostatically compensated terrain gravity anomalies, respectively, that show zero correlation. This lack of correlation may be interpreted for a Moho that involves over 100 km of relief assuming Airy-Heiskanen compensation of the crust. Beneath Mare Orientale, we observed a minimum crustal thickness of about 17 kin. Corresponding terrain-decorrelated free-air gravity anomalies of Mare Orientale may be related to a central cone-shaped body of 0.5 g/cm 3 density contrast with apex extending nearly 5 km below the surface, which is surrounded by a ringed-shaped body of-0.5 g/crn 3 density contrast that may extend about 7 km below the surface. These bodies resulted possibly from meteorite impact that produced a roughly circular region of breccia and highly fractured crust with a higher density core where some rernelting of the rocks about the impact site may have occurred.