遗传还是环境:双胞胎研究

标签:
杂谈 |
The Other Minnesota Twins
http://science.howstuffworks.com/twin1.htm
Marshall Brain’s identical twin sons at birth |
On a most basic level, identical twins are fascinating because they challenge this truth. They are unique people, of course, but they're eerily like each other.
Consider the extreme case of the "Jim twins." Identical twins Jim Lewis and Jim Springer were only four weeks old when they were separated; each infant was taken in by a different adoptive family. At age five, Lewis learned that he had a twin, but he said that the notion never truly "soaked in" until he was 38 years old. Springer learned of his twin sibling at age eight, but both he and his adoptive parents believed the sibling had died. The two were finally reunited at age 39. The similarities the twins shared not only amazed one another, but researchers at the University of Minnesota as well. The very fact that you had twin siblings separated at birth bearing the same name, both 6 feet tall and weighing exactly 180 pounds is pretty incredible. But there's more.
In her book Entwined Lives, Nancy Segal lists the following shared characteristics:
- As youngsters, each Jim had a dog named "Toy."
- Each Jim had been married two times -- the first wives were
both called "Linda" and the second wives were both called "Betty."
- One Jim had named his son "James Allan" and the other Jim had
named his son "James Alan."
Twins Days in Twinsburg, Ohio Touted as the world's largest annual gathering of twins, since August 1976 this familial fête has taken over Twinstown with tournaments, talent shows, twin contests and more. For dates and schedule information, check out the official festival Web site. - Each twin had driven his light-blue Chevrolet to Pas Grille
beach in Florida for family vacations.
- Both Jims smoked Salem cigarettes and drank Miller Lite beer.
- Both Jims had at one time held part-time posts as sheriffs.
- Both were fingernail biters and suffered from migraine
headaches.
- Each Jim enjoyed leaving love notes to his wife throughout the house.
Of course, before you start thinking about science fiction movies with pod people, the Jims, like other identical twins, are not carbon copies of each other. Some obvious differences were discovered during their participation in the "Minnesota Study of Twins Reared Apart," including:
- Each styled his hair differently; one Jim wore it combed
straight, hanging down over his forehead (think Beatles circa 1961)
and the other Jim wore it combed back and sported sideburns (think
Johnny Cash circa 1957, but with longer 'burns).
- One Jim more clearly conveyed himself through speech, while the
other was better suited to writing.
- While both Jims had been married twice, one Jim had taken vows with a third wife (called "Sandy")
附录1:The Jim Twins from Ohio
(Excerpt from a U.S. newspaper)
http://www.kabalarians.com/cfm/SearchDocs/NL/NLFeb~02.html
Jim Lewis and Jim
Springer first met February 9, 1979 after 39 years of being
separated.
When the two first met, Lewis
described it as "like looking into a mirror."
附录2:The
remarkable ‘Jim
Twins’=不可思议的‘杰姆双胞胎’
The most incredible story is that of Jim Springer and Jim Lewis from Ohio in the USA-in fact, the ‘Jim Twins’ made headline news across the USA when they finally met up at the age of thirty-nine. Born to a poor immigrant woman in 1939, they were adopted by different families when they were a few days old, and both were named Jim by their new families. This was just the first in an almost unbelievable number of similarities in their lives.
一个真实却相当令人难以置信的故事是关于来自美国俄亥俄州的杰姆斯本高和杰姆刘易斯,这对‘杰姆双胞胎’再次见面的消息被制作成头版新闻在美国广泛传播,这年他们39岁。
1939年一个贫穷的移民妇女生下了他们两个,他们生下来没几天就被不同的家庭收养,而且他们的名字也分别是收养他们的人给取的。这是发生在他们生活中那众多令人难以置信的例子的一个开始。
★
★
★
★
★
★
★
★
★
★
☆
☆
☆
☆
☆
☆
☆
☆
☆
☆
附录3:Two Ohio Strangers Find They're Twins at 39—and a Dream to Psychologists
Within two weeks after reading about them in the press, Dr. Bouchard had the twins in his Minneapolis lab for tests. At the outset of his investigation the psychologist said, "I think there are going to be all kinds of differences that will surprise even the twins." But what was immediately apparent were eerie similarities that left even Bouchard "flabbergasted."
Curiously, both had been christened James by their adoptive parents, the Jess Lewises of Lima and the Ernest Springers of Piqua, 40 miles away. As schoolboys, both enjoyed math and carpentry—but hated spelling. Both pursued similar adult occupations: Lewis is a security guard at a steel mill, and Springer was a deputy sheriff (though he is now a clerk for a power company). Both married women named Linda, only to divorce and remarry—each a woman named Betty. Both have sons: James Alan Lewis and James Allan Springer.
The two men shared one other fact in common. As Jim Springer put it, "I always felt an emptiness." Neither the Springers nor the Lewises ever met the 15-year-old (unwed) mother of their sons, and both couples were told that their adoptive child had a twin who died at birth. Then one day, when Jim Lewis was 16 months old, his mother visited the Miami County courthouse to settle the adoption paperwork, and an official remarked offhandedly, "They named the other little boy 'Jim' too."
For 37 years that hint tugged at Mrs. Lewis, who occasionally urged her son to find out if it was true. Finally, last Thanksgiving, he agreed to search—though he says he doesn't know why. Jim Lewis wrote the probate court, which had a record of the adoption, and contacted the Springer parents in Piqua. "I came home one day," Lewis recounts, "and had this message to call 'Jim Springer.' " When he phoned Springer, Lewis blurted out: "Are you my brother?" "Yup," Springer replied. Four days later, last Feb. 9, Lewis drove to meet his twin for an emotional reunion.
Dr. Bouchard offered expenses and a small honorarium to get them to Minneapolis for a week of extensive physical and psychological tests. He wanted to begin as soon as possible to preclude their reminiscing together too long and thus "contaminating" the evidence. Though not the first such separated twins—the records show 19 previous sets in the U.S. among some 75 worldwide—Lewis and Springer were believed to have been apart by far the longest.
The detailed results of Bouchard's textbook case will be revealed to the twins themselves, but to protect their privacy will be buried among other data in the professor's book on differential psychology now in progress. There has been one development that may leave the twins still puzzling over heredity and environment. On Feb. 28 Jim Lewis, having divorced his second wife, Betty, married a woman named Sandy Jacobs. Betty and Jim Springer were present, with Jim serving as his newfound brother's best man.