Signs of ageing, the lifespan and self-representation in European self-portraits since the 15th century.

Painters' self-portraits offer the opportunity to study signs of ageing through the centuries. In this paper, we examine 687 self-portraits by 506 European painters from the 15th to the 20th century. To qualify for the analysis, painters had to be unquestionably identified, have known years of birth and death, and the self-portraits had to be dated unequivocally. ‘Age scores’ for the characteristics of the lower face were developed. Ptosis of the upper eyelid, bags under the eyes and the characteristics of beards were also recorded. Among the main findings, the painters of self-portraits that exhibited ptosis of the upper eyelid had a higher actual age than those of portraits which did not (55 versus 38 years). Similarly, those that represented bags under the eyes were older painters (47 versus 33 years). The percentages of portraits with eyelid ptosis and bags under the eyes were similar through the centuries and in three zones of Europe. The age scores of the lower half of the face were also consistent in all centuries, except at ages 40–49 years. The painters' average lifespan significantly increased during the 18th century; and within Europe a north-south lifespan gradient has been evident since the 17th century. We conclude that ageing has had similar facial manifestations over the last five centuries, except between 40 and 50 years of age. [ABSTRACT FROM AUTHOR]