In 1968 Yael Haft and Prof. Pierre Soliman - then the Chief Psychologist of the Akko City Mental Hospital - conducted a study in the hospital. Yael Haft proposed to to examine the patients' palms, said Prof. Soliman. "I told her, first examine my hands. After the test she told me things about my character and about my parents, which were really astounding, with out having known me beforehand."

I proposed that we should try to make a comparison between my diagnoses of patients and her diagnoses. To my surprise, there was a great degree of correspondence.

Between 1970 and 1974 Yael Haft and Dr. Yigal Ginat performed a study at the Talbieh Mental Hospital in Jerusalem, comparing the palm of 150 schizophrenics with those of 50 healthy persons. She first read the hands of Dr. Ginat, his family and and several of his patients. "She was right about us," says Dr. Ginat - at the time of the interview, the head of the Hospital. "The study shows that one of the very impressive things in this examination is that the palm prints show great differences, even in the course of a few months."

"I relate to chirology examination as a good psychological examination. The chirological examination often reveals in two hours the same thing that would be shown in a psychological diagnosis over a period of several months. This is a tool which can be of a great complementary importance to psychology, especially in diagnosis."

R.Y. A Social Worker, said after a hand test: "she discovered amazing things about me. For example: she told me that I have teaching skills, that I can lecture in front of an audience without any problem - and I was so shy at the time, I hardly opened my mouth. She also told me that I have a talent for organization and management. At the beginning this seemed strange to me. Today I use all these skills." Her husband, an advocate, came to Yael Haft for a chirological examination. "She said astounding things about me. She said that I was close to the subject of art and culture - and I became the chairman of the board of the Haifa Theatre. She said that I have writing ability, and it's true. She said things about me that I hadn't known myself."