Adult Use of and Transitions From Nicotine and Non-nicotine-Containing E-cigarettes: Data From the Population Assessment of Tobacco and Health (PATH) Study, 2013-2016.

Introduction: Studies largely focus on nicotine-containing e-cigarettes (NiCE) though non-nicotine-containing e-cigarettes (NoCE) exist; NoCE prevalence and patterns of use are largely unknown. This study examines self-reported prevalence and patterns of NiCE/NoCE use.

Methods: We analyzed adult (18+ years) data from the Population Assessment of Tobacco and Health (PATH) study from Wave 1 (2013-2014, n = 32,320), Wave 2 (2014-2015, n = 28,632), and Wave 3 (2015-2016, n = 28,148).

Personality, negative social exchanges, and physical health among bereaved adults.

While much research has investigated the association between personality and health, little research has done so using a bereaved sample. Additionally, little research has investigated how personality influences the frequency of negative social exchanges bereaved individuals receive. This study utilized a structural equation model to investigate the associations among age, gender, personality, negative social exchanges, length of bereavement, and self-reported physical health in a sample of bereaved adults.

LFP spectral peaks in V1 cortex: network resonance and cortico-cortical feedback.

This paper is about how cortical recurrent interactions in primary visual cortex (V1) together with feedback from extrastriate cortex can account for spectral peaks in the V1 local field potential (LFP). Recent studies showed that visual stimulation enhances the γ-band (25-90 Hz) of the LFP power spectrum in macaque V1. The height and location of the γ-band peak in the LFP spectrum were correlated with visual stimulus size.