Removal of the Ocular Artifact from the EEG: A Comparison of Time and Frequency Domain Methods with Simulated and Real Data

Constructed 2 data sets from simulated data, in which the transfer from electrooculogram (EOG) to EEG was either frequency-independent (constant gain) or frequency-dependent. Three different correction methods were applied: simple regression analysis (RA) in the time domain, a multiple-lag RA in the time domain, and an RA in the frequency domain. For Data Set 1, the 3 methods constructed the original EEG equally well. With Data Set 2, reconstruction of the original EEG was achieved reasonably well with the frequency domain method and the time domain multiple-lag method, but not with simple time domain regression. These 3 correction procedures were also applied to real data, consisting of concomitantly recorded EEG and high-variance EOG series. There were no differences in outcome of the 3 methods

Buying into motherhood? Problematic consumption and ambivalence in transitional phases

Current theory on transitional consumption seems to rest on the premises that (1) consumption facilitates role transitions; (2) consumers know how to consume their way through these transitions; (3) consumers are motivated to approach new roles; and (4) consumption solves liminality. This perspective, however, offers an incomplete picture of consumption’s role in the management of major life transitions. This article explores the ways in which ambivalence is woven through consumption experiences in times of liminality. It reviews prior research on consumption, role transitions, and ambivalence in the context of women’s transition into motherhood. Findings are presented from an international interpretive study of women’s consumption experiences during their transition to motherhood. This paper’s findings suggest that while consumption can indeed play a positive role during role transitions, it can also, at other times, make transition a complicated, complex and confusing process