Sensory systems represent stimulus identity and intensity, but in the neural periphery these two variables are typically intertwined. Moreover, stable detection may be complicated by environmental uncertainty; stimulus properties can differ over time and circumstance in ways that are not necessarily biologically relevant. We explored these issues in the context of the mouse accessory olfactory ...

Analyses of three waves (6 years) of the National Longitudinal Survey of Adolescent Health data explored the prevalence and stability of sexual orientation and whether these two parameters varied by biologic sex, sexual orientation component (romantic attraction, sexual behavior, sexual identity), and degree of component. Prevalence rates for nonheterosexuality varied between 1 and 15% and depe...

Age imparts long-term dynamic changes to faces: how these are represented in the human visual system has seldom been investigated. We investigated facial age after-effects using a perceptual bias paradigm, and studied the ability of adaptation to transfer across face identity, visual stimuli and sensory modality, as has been done for the short-term dynamic changes of facial expression. Age afte...

Individual primates can be identified by the sound of their voice. Macaques have demonstrated an ability to discern conspecific identity from a harmonically structured 'coo' call. Voice recognition presumably requires the integrated perception of multiple acoustic features. However, it is unclear how this is achieved, given considerable variability across utterances. Specifically, the extent to...

The determination of segment identity in Drosophila melanogaster appears to be controlled by a small number of genes. In order to identity new components in the process, we have systematically screened the autosomal complement for loci that show a dosage-dependent interaction with mutations in previously characterized genes thought to be important in the determination of segment identity. The d...

Picone identity for a class of nonlinear differential equations is established and various qualitative results (such as Wirtinger-type inequality and the existence of zeros of first components of solutions) are obtained with the help of this new formula.

The development of ethnic identity is a critical facet of adolescence, particularly for adolescents of color. In order to examine the developmental trajectory of ethnic identity, African American, Latino American, and European American early and middle adolescents (N = 420) were assessed over 3 years. Two components of ethnic identity were assessed--group-esteem was found to rise for both early...

One’s athletic identity, developed and maintained by others as well as the self, is likely important in sustaining long-term physical activity over many years. The 21-item Athletic Identity Questionnaire (AIQ) is presented as a multidimensional measure of the components of athletic identity that reflects an attribute all people possess to varying degrees and encompasses exercise, sports, and ph...

Increasingly, information and communication technology (ICT) uses are transforming professional activities and interactions in ways that challenge traditional assumptions about professional identity. In this paper, we consider how ICT uses by research scientists in oceanography and marine biology shape professional identity. Empirical data are drawn from an ongoing study of ICT use in collabora...