Constructing and measuring self-esteem

Abstract

The concept of self-esteem is examined as it relates to the theory and practice of personal construct psychology (PCP). William James's two perspectives on the self, as a knower and as an object of knowledge, are related to two PCP perspectives, the self as a construct and the self as an element. Various PCP concepts, such as core role constructs, range of convenience, and emergent poles, are interpreted in regard to self-esteem. Methods for changing self-constructions to enhance self-esteem are also described. A modified repertory grid format is recommended for the study of self-esteem, one that uses positive experiences as grid elements instead of people who fit selected roles.     

Electroencephalographic registration of low concentrations of isoamyl acetate

Previous research has demonstrated electroencephalogram (EEG) changes in response to low-odor concentrations, resulting in near-chance detection. Such findings have been taken as evidence for olfaction without awareness. We replicated and extended previous work by examining EEG responses to water-water control, 0.0001, 0. 001, 0.01, and 1 ppm isoamyl acetate (IAA) in water paired with water only. Detection was above chance (>50%) for.001 and above, and alpha decreased only to those concentrations, suggesting that EEG changes corresponded to IAA awareness. However, when correct trial EEGs were compared to incorrect trial EEGs during.001 ppm, right posterior/central alpha decreased during incorrect trials and alpha decreased more globally (including frontal sites) during correct trials. These data may not reflect awareness or unawareness per se. Instead, results are discussed regarding activation of perceptual systems in the posterior region during incorrect trials and the activation of frontal action systems during a subset of correct trials.