Results 11 to 20 of about 1,501,383 (246)

Additive effect of contrast and velocity suggests the role of strong excitatory drive in suppression of visual gamma response.

open access: yesPLoS ONE, 2020
It is commonly acknowledged that gamma-band oscillations arise from interplay between neural excitation and inhibition; however, the neural mechanisms controlling the power of stimulus-induced gamma responses (GR) in the human brain remain poorly ...
Elena V Orekhova   +4 more
doaj   +1 more source

How experience with tone in the native language affects the L2 acquisition of pitch accents

open access: yesFrontiers in Psychology, 2022
This paper tested the ability of Mandarin learners of German, whose native language has lexical tone, to imitate pitch accent contrasts in German, an intonation language.
Katharina Zahner-Ritter   +3 more
doaj   +1 more source

An etiology of human modernity

open access: yesAnthropological Review, 2021
Following the refutation of the replacement hypothesis, which had proposed that a ‘superior’ hominin species arose in Africa and replaced all other humans existing at the time, the auto-domestication hypothesis remains the only viable explanation for the
Bednarik Robert G.
doaj   +1 more source

The two visual systems hypothesis and contrastive underdetermination [PDF]

open access: yesSynthese, 2018
This paper concerns local yet systematic problems of contrastive underdetermination of model choice in cognitive neuroscience debates about the so-called two visual systems hypothesis. The underdetermination problem is systematically generated by the way certain assumptions about the representationalist nature of computation are translated into ...
openaire   +2 more sources

Examining the Role of Phoneme Frequency in First Language Perceptual Attrition

open access: yesLanguages, 2023
In this paper, we follow up on previous findings concerning first language (L1) perceptual attrition to examine the role of phoneme frequency in influencing variation across L1 contrasts.
Charles B. Chang, Sunyoung Ahn
doaj   +1 more source

Temporal adaptation enhances efficient contrast gain control on natural images. [PDF]

open access: yesPLoS Computational Biology, 2013
Divisive normalization in primary visual cortex has been linked to adaptation to natural image statistics in accordance to Barlow's redundancy reduction hypothesis.
Fabian Sinz, Matthias Bethge
doaj   +1 more source

Recurrent neck swelling after iodinated contrast media administration

open access: yesRadiology Case Reports, 2021
A 74-year-old male with an abdominal aortic aneurism reported 2 episodes of neck swelling 16 hours after an abdominal CT with iodinated contrast media that reappeared in a subsequent CT, although the use of pre-medication.
Inês Machado Cunha, MD   +4 more
doaj   +1 more source

Subprime crisis and instability of global financial markets [PDF]

open access: yesPanoeconomicus, 2010
In order to prescribe adequate remedies to treat the current financial crisis one has to understand what in the first place went wrong. An age ago, older generations wrote that disease could not be cured without an accurate diagnosis.
Radonjić Ognjen, Zec Miodrag
doaj   +1 more source

Marginal contrasts and the Contrastivist Hypothesis

open access: yesGlossa: a journal of general linguistics, 2016
The Contrastivist Hypothesis (CH; Hall 2007; Dresher 2009) holds that the only features that can be phonologically active in any language are those that serve to distinguish phonemes, which presupposes that phonemic status is categorical. Many researchers, however, demonstrate the existence of gradient relations.
Hall, Daniel Currie   +1 more
openaire   +2 more sources

Evolution of bill size in relation to body size in toucans and hornbills (Aves: Piciformes and Bucerotiformes)

open access: yesZoologia (Curitiba), 2014
Evidence that the bill of the Toco Toucan, Ramphastos toco Statius Muller, 1776, has a specialized role in heat dissipation suggests a new function for the large and light-weight bill of the toucan family (Piciformes: Ramphastidae).
Austin L. Hughes
doaj   +1 more source

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