P REVIOUS reports have given a description of the cyclic changes in excitability of both auricle and ventricle of the dog’s heart (I, 2). It was found that the dog’s auricle is ‘vulnerable’ to fibrillation throughout the major dip area of the excitability-recovery curve (3). A study of ventricular vulnerability has now been made. Cats and turtles were used almost exclusively in this investigati...

Baingio Pinna’s article “New Gestalt principles of perceptual organization: An extension from grouping to shape and meaning” won the 2009 Metzger Award of the Society for Gestalt !eory and its Applications. In this article, Pinna presented a variety of novel images that probe the way in which local and global factors interact to generate the percepts that we consciously see. As Pinna noted at t...

The objective of the study was to estimate the possible association of maternal diseases with the risk of isolated ear congenital abnormalities (IECA) including mainly microtia and anotia in their children. Incidence of acute and prevalence of chronic maternal diseases in the mothers with IECA and in the mothers of their matched controls and all controls without any defects, in addition in the ...

Accurate sound source localization in three-dimensional space is essential for an animal's orientation and survival. While the horizontal position can be determined by interaural time and intensity differences, localization in elevation was thought to require external structures that modify sound before it reaches the tympanum. Here we show that in birds even without external structures like pi...

OBJECTIVES Chondrodermatitis nodularis chronica helicis (CNCH) usually presents as a painful nodule affecting the pinna. The aetiology of the disease is unknown. Several theories have been suggested. We suggest a possible explanation based upon pathophysiological treatment correlations to new histopathological evidence. DESIGN A detailed histopathological review of 16 confirmed cases of CNCH ...

Since operation a cardiac transplant recipient has suffered from chronic, non-productive but intense coughing spells triggered by stimulation of the right external ear. This demonstrates the unusual phenomenon of acquired aberrant sensory referral.

Objectives: Hearing impairment in children is considered as an important public health problem. Auditory function in these children is poor and depends on their hearing aids efficacy and also their ears’ status. Hearing aids are very expensive and ear disease deteriorates its performance. Therefore detecting the ear disease and offering proper treatment is necessary. The aim of this study is to...