The duplex theory re-revisited: Spectral weighting of localization cues in tones and noises

2019 ◽  
Vol 145 (3) ◽  
pp. 1720-1720
Author(s):  
G. Christopher Stecker ◽  
Monica L. Folkerts ◽  
Julie M. Stecker
Keyword(s):  
Duplex Theory ◽  
Spectral Weighting

The Scientific Work We Love: A Duplex Theory of Scientific Impact and Its Application to the Top-Cited Articles in the First 30 Years of APS Journals

2018 ◽  
Vol 13 (2) ◽  
pp. 260-267 ◽  
Author(s):  
Robert J. Sternberg
Keyword(s):  
Scientific Work ◽  
High Impact ◽  
Data Driven ◽  
Scientific Impact ◽  
Psychological Science ◽  
Review Articles ◽  
Triangular Elements ◽  
Duplex Theory

This article proposes a duplex theory for understanding the scientific impact of contributions to psychological science. I argue that articles that we “love” can be understood in terms of (a) triangular elements of intimacy, passion, and commitment and (b) types of stories that characterize high-impact articles. Certain kinds of stories (e.g., review articles) are more likely to have lasting impact, on average, than other kinds of stories (e.g., data-driven empirical articles).

Remote measurement of spectral weighting in sound localization using virtual reality headsets

2021 ◽  
Vol 150 (4) ◽  
pp. A299-A299
Author(s):  
Jwala P. Rejimon ◽  
Monica L. Folkerts ◽  
G. Christopher Stecker
Keyword(s):  
Virtual Reality ◽  
Sound Localization ◽  
Remote Measurement ◽  
Spectral Weighting

Spectral weighting in sound localization: Effects of competing noise

2021 ◽  
Vol 150 (4) ◽  
pp. A304-A304
Author(s):  
Monica L. Folkerts ◽  
Erin M. Picou ◽  
G. Christopher Stecker
Keyword(s):  
Sound Localization ◽  
Spectral Weighting

Validation of calibrated GOCE gravity gradients GRD_SPW_2 by least-squares spectral weighting   

2021 ◽  
Author(s):  
Martin Pitoňák ◽  
Michal Šprlák ◽  
Vegard Ophaug ◽  
Ove Omang ◽  
Pavel Novák
Keyword(s):  
Least Squares ◽  
Ocean Circulation ◽  
Directional Derivatives ◽  
Gravity Gradients ◽  
Terrain Model ◽  
Satellite Altitude ◽  
Gravitational Gradients ◽  
Gravity Disturbances ◽  
Spectral Weighting ◽  
Level 2

<p>The Gravity field and steady-state Ocean Circulation Explorer (GOCE) was the first mission which carried a novel instrument, gradiometer, which allowed to measure the second-order directional derivatives of the gravitational potential or gravitational gradients with uniform quality and a near-global coverage. More than three years of the outstanding measurements resulted in two levels of data products (Level 1b and Level 2), six releases of global gravitational models (GGMs), and several grids of gravitational gradients (see, e.g., ESA-funded GOCE+ GeoExplore project or Space-wise GOCE products). The grids of gravitational gradients represent a step between gravitational gradients measured directly along the GOCE orbit and data directly from GGMs. One could use grids of gravitational gradients for geodetic as well as for geophysical applications. In this contribution, we are going to validate the official Level 2 product GRD_SPW_2 by terrestrial gravity disturbances and GNSS/levelling over two test areas located in Europe, namely in Norway and former Czechoslovakia (now Czechia and Slovakia). GRD_SPW_2 product contains all six gravity gradients at satellite altitude from the space-wise approach computed only from GOCE data for the available time span (r-2, r-4, and r-5) and provided on a 0.2 degree grid. A mathematical model based on a least-squares spectral weighting will be developed and the corresponding spectral weights will be presented for the validation of gravitational gradients grids. This model allows us to continue downward gravitational gradients grids to an irregular topographic surface (not to a mean sphere) and transform them into gravity disturbances and/or geoidal heights in one step. Before we compared results obtained by spectral downward continuation, we had to remove the high-frequency part of the gravitational signal from terrestrial data because in gravitational gradients measured at GOCE satellite altitude is attenuated. To do so we employ EGM2008 up to d/o 2160 and the residual terrain model correction (RTC) has been a) interpolated from ERTM2160 gravity model, b) synthesised from dV_ELL_Earth2014_5480_plusGRS80, c) calculated from a residual topographic model by forward modelling in the space domain.  </p>

scholarly journals Perceptual Weighting of Binaural Lateralization Cues across Frequency Bands

2020 ◽  
Vol 21 (6) ◽  
pp. 485-496
Author(s):  
Axel Ahrens ◽  
Suyash Narendra Joshi ◽  
Bastian Epp
Keyword(s):  
Auditory System ◽  
Phase Locking ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Low Frequencies ◽  
Frequency Bands ◽  
Relative Contribution ◽  
Highest Weight ◽  
Auditory Enhancement ◽  
Spectral Weighting

Abstract The auditory system uses interaural time and level differences (ITD and ILD) as cues to localize and lateralize sounds. The availability of ITDs and ILDs in the auditory system is limited by neural phase-locking and by the head size, respectively. Although the frequency-specific limitations are well known, the relative contribution of ITDs and ILDs in individual frequency bands in broadband stimuli is unknown. To determine these relative contributions, or spectral weights, listeners were asked to lateralize stimuli consisting of eleven simultaneously presented 1-ERB-wide noise bands centered between 442 and 5544 Hz and separated by 1-ERB-wide gaps. Either ITDs or ILDs were varied independently across each noise band, while fixing the other interaural disparity to either 0 dB or 0 μs. The weights were obtained using a multiple linear regression analysis. In a second experiment, the effect of auditory enhancement on the spectral weights was investigated. The enhancement of single noise bands was realized by presenting ten of the noise bands as preceding and following sounds (pre- and post-cursors, respectively). Listeners were asked to lateralize the stimuli as in the first experiment. Results show that in the absence of pre- and post-cursors, only the lowest or highest frequency band received highest weight for ITD and ILD, respectively. Auditory enhancement led to significantly enhanced weights given to the band without the pre- and post-cursor. The weight enhancement could only be observed at low frequencies, when determined with ITD cues and for low and high frequencies for ILDs. Hence, the auditory system seems to be able to change the spectral weighting of binaural information depending on the information content.

The duplex theory of thickness discriminations by touch

2002 ◽  
Vol 2002.1 (0) ◽  
pp. 231-232 ◽  
Author(s):  
Tetsu MIYAOKA ◽  
Masahiro OHKA
Keyword(s):  
Duplex Theory
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