A Novel Human Sex Difference: Male Sclera Are Redder and Yellower than Female Sclera.

In a seminal study, Kobayashi and Kohshima (1997) found that the human sclera-the white of the eye-is unique among primates for its whitish color, and subsequent work has supported the notion that this coloration underlies the human ability to gaze follow. Kobayashi and Kohshima also claimed that there is no significant sex difference in sclera color, though no data were presented to support the claim. We investigated sclera color in a standardized sample of faces varying in age and sex, presenting the first data comparing male and female sclera color.

Examining the 'cosmetics placebo effect'.

Previous studies have found a positive effect of cosmetics on certain behavioral measures, such as the tip given to waitresses by male patrons. These studies have employed confederates who usually wear cosmetics. We therefore sought to examine whether the positive effect found in these studies could, in part, be explained by a change in behavior.

Postlaryngectomy dysphagia masking as velopharyngeal insufficiency: a simple solution for an anterior neopharyngeal diverticulum.

Postlaryngectomy dysphagia is a common occurrence and can be a source of emotional distress that results in a decrease in quality of life among a patient population that is already exposed to considerable morbidity. One etiologic source that is less commonly reported as a source for postlaryngectomy dysphagia, and perhaps overlooked, is an anterior neopharyngeal diverticulum. Herein, we describe a postlaryngectomy dysphagia caused by a neopharyngeal diverticulum masking as velopharyngeal insufficiency of liquids.