Friday, February 6, 2009
Secrets Of Human Fingerprint Patterns And Ridges
A fingerprint from contact with a flat surface. The contact occurs only along the summits of the epidermal ridges. This contact pattern results in a particular filtering of tactile information during active exploration of a surface. Image Credit: Science/AAAS)
Secrets Of Human Fingerprint Patterns And Ridges
Two articles about fingerprints and their patterns hold unique secrets and understanding about humans on this Oblate Spheroid.
One study released last week addresses why they are what they are, why and how ridges and receptors combine to give a person a more detailed understanding of feel and touch.
The other discusses how the print pattern of a group of fingers (laid out in patterns defined as whorls and waves) might say about a person and his/her destiny uncovered in an ancient Asian belief.
Do identical twins have identical fingerprints? - Identical twins have fingerprints that can be readily distinguished on close examination. However, the prints do have striking similarities. In fact, before the arrival of modern genetic testing, similarity of fingerprints was often used to determine whether twins were identical or fraternal. Image Credit: Nick McGlynn
This excerpted and edited from CBC News -
Fingerprints key to ability to process fine textures: study
Fingerprints don't exist simply to improve gripping ability or identify cat burglars - they may also act as a type of touch filter that improves perception, according to a new study.
CBC News - 30/01/2009 5:12:12 PM
The study, published in [last] Friday's edition of Nature, suggests that fingerprints may help perceive very fine textures more efficiently. Specifically, fingerprints can tune out vibrations outside a certain frequency so only very specialized touch receptors can pick them up.
These receptors, called Pacinian fibres, are involved in detecting fine features. But they also have the lowest spatial resolution of any of the receptors involved in touch. This means that, taken alone, they are the least able to distinguish between two closely spaced pressure points, a characteristic that appears to be a contradiction for a receptor involved with fine touch, the study says.
The researchers from the University of Paris think this is where fingerprints come into play. They said there is no way to experimentally measure stress under the skin on a finger, so they created a synthetic mechanical sensor instead. They then placed two types of rubber caps on top of the sensor - one smooth, and the other ridged like a fingerprint.
The sensor was then rubbed across a glass surface covered with patterned textures. They found that the sensor covered with the smooth cap picked up a large variety of vibrations. But in the case of the ridged sensor, it filtered out many of the vibrations picked up by the smooth cap and amplified them.
The researchers concluded that a typical set of fingerprints would produce vibrational frequencies in the range of 200 to 300 Hz. Pacinian fibres respond best to frequencies around 250 Hz, and would therefore be able to pick up these filtered vibrations.
"Fingerprints thus allow for a conditioning of the texture-induced mechanical signal which facilitates its processing by specific [touch receptors]," the study says.
Amplification of the vibrations depends strongly on the orientation of ridges with respect to the movement of the finger. In the study, the ridges had to be oriented perpendicular to the direction of movement.
But the authors note that fingerprints are arranged in swirls, so that each region of the fingertip can achieve optimal orientation.
"Further studies are needed in order to elucidate how this may reflect on the exploratory procedures [such as fingertip trajectory and contacting zone] used by humans during texture evaluation tasks," the study says.
So, the study opines that the difference in a pattern and how it presents itself may effect the actual filtering sensation of touch.
On the actual way a group of patterns are laid out, the Chinese have devised a way to read personality & destiny traits by studying the waves and the circles that appear at the tips of everyone’s fingers.
Patterns for men are always analyzed from their left hands while women are analyzed from their right hands.
To make a reading, look at ones thumb print first, then the index finger, middle finger, ring finger and then the little finger, always in that order. This is the sequence that offers clues to ones destiny & fortunes of a life lived.
Chinese societies were so convinced that in earlier times the fingers of prospective daughters-in- law were carefully scrutinized by prominent families to ensure they did not unwittingly welcome women who had fingers that showed alternate whorls and waves on their fingers, as it was commonly believed that such women would bring trouble into the family, being particularly difficult to control and usually very aggressive. Image Credit: pcworx
This excerpted and edited from pcworx -
Check yours…. It’s interesting
It is already an accepted fact that every single person in the world has a different set of fingerprints.
For ease of reference we shall refer to whorls (aka, circles) as “O” and to waves as “W”.
Fingers: OOOOO (all whorls)
Means: This person is very confident, has a strong character and a hot temper. He/she is an independent person. The luck of this person changes dramatically in life from one period to the next. The undoing of this person will be his/her hot temper so it is vital that this person must learn to be patient and calm.
Shape: WWWWW (all waves)
Means: This person is a straightforward honest person who goes with the flow. The fingers indicate someone very sensitive, who is especially suited to design and creative work. People with these fingerprint patterns tend to be shy and uncomfortable in social situations, so are not suited to work in PR, politics or any kind of work requiring them to meet people.
Means: If you can choose a prestigious working career, you will be very successful. However, you should avoid the tendency to get big-headed and you must never take your career for granted. You should also watch your back, as you tend to attract jealousy into your life and could get betrayed. Always look for long-term benefits.
Means: You will need to work harder during the early days of your career. When you reach middle and older age, you will get recognition and wealth luck. So your life gets better the older you get.
Means: It is vital that you resist the tendency to be narrow-minded in your attitudes and in the way you think and work. Try to be humble and learn as much as possible. This is how you will get influential help that brings you to the peak of your business and career life.
Means: You are a very clear-minded person. As long as you work hard, you are guaranteed to be
successful. Even though you tend to be in a hurry, there will be those who help you along. You are also a person with a kind heart.
Means: Because you are kind and have an in-built polite attitude, you will easily get help from older persons and friends. You will enjoy great success in your working life and your only weakness is you don’t trust people too easily. This can make you too conservative.
Means: You have a tendency to be bad tempered, and rather quick to judge. This is a shallow attitude and could easily get you onto the wrong path. If you can correct this tendency of yours, you will have great success. The potential is in you, so try to be calm in your approach.
Means: You have good character but can only become really successful in older age. Be prepared to have to work really hard during your younger and middle age periods, but you will become a successful person in older years.
Means: You are very good in the social skills. No matter what industry you are in, you like to take risk and you will always face uncertainty. Be careful as the later years of your life could bring yet more challenges. Take less risk as you get older.
Means: You are a person who has high vision and heavy responsibility. Be careful. Your visions could get you into serious difficulty. Better to stay more grounded, then your life will have greater success.
Means: You are very intelligent and will enjoy a lot of scholastic honors. You will have a smooth life and benefit from wealth luck. If you can work hard, you will become a great and successful person.
Means: You will inherit a business or property from your parents or from an older person. Even though you are a capable person and can be successful in your own business, your tendency towards impatience could get you into a lot of difficulty.
Means: You have a tendency to be proud and snobbish, although deep inside you are a kind-hearted person. Your social skills however need improving. Your relatives tend to take advantage of you.
Means: You are a deep thinking person. At a young age, you are already thinking of your future. You will enjoy a smooth and peaceful life; you will be very happy in your old age.
Means: You are a very sociable person and you enjoy the carefree kind of life going out, partying and clubbing. When you reach middle and older age, you will rely on people to support you. Be warned, if you do not prepare yourself, you might have a hard time during your older years.
Means: You are not an easy person to control or to convince, as you are something of a rebel. If you can stay focused on what you want from life, you will be successful. The problem is that you can be fickle and vague in what you really want from life.
Means: Your whole life is full of ups and downs, successes and failures. However, if you can
move steadily step-by-step, you can enjoy a peaceful life as you grow into maturity.
Means: You are very kindhearted person and there will be good people in your life, as you will attract these kinds of people towards you. Work hard and you will easily reap your just rewards. You will definitely become successful.
Means: You will get recognition and become famous. Even though your life appears unstable during your earlier years of working life and you need to work hard in your thirties, when you reach maturity, your life gets better and better.
Means: You are a very capable person, but you tend to lack good judgment. You also tend to start something and then lose interest. Stay focused if you want to succeed.
Means: You are a noble person with a good character. You tend to be very helpful towards colleagues and friends so you are a popular person. Because you can think in-depth and have sensitivity towards others, you will enjoy success in the creative fields.
Means: You are blessed with a fast and formidable intellect. You work very quickly and with great effectiveness. However, your character is very aggressive and people tend to be intimidated by you. If you can correct this trait, you can rise to great heights.
Means: You are a very straightforward person. But your thinking tends to be rather naïve and shallow. Even though your suggestions are good, if you don’t think through what you say, you should not be surprised if people tend to ignore your views. Your speech tends to lack power.
Means: You are a high-minded person, able to see and grab opportunities. You are best suited to work in the financial and investment fields. Your luck gets better as you grow older.
Means: You are a very honest and reputable person. You have little urge to get rich or pursue material wealth. But watch it, if you don’t know how to take care of yourself, you can easily get conned and taken advantage of by people.
Means: Your social skills are good, so you attract guidance and help from influential people. Many people help you in your rise to prominence, and your luck turns fabulous in later years.
Means: You are a very brave and hardworking person. A lot of people trust you when you are young. However, unless you work at preserving your reputation, you could make enemies on your rise up and find that life becomes harder as you get older.
Means: You are a kindhearted character and easily get along with others. You are not good at doing business, but you are good as a teacher or even as a spiritual master. You can enjoy success in the academic world.
Means: You are reputable and have a peaceful character. So you are definitely someone who can become successful and recognized. However, because of your tendency towards pride, you could end up offending the wrong people.
Means: You are a simple but logical person. If you can focus on the fundamentals of life and adopt a step-by-step approach in your climb up the success ladder and not be too impatient, you will benefit from wealth luck and be honored by people.
Means: You are a straight talking person who is forthright in your approach. You are strong in character, playful but you also easily offend people. But you are also lucky because when you reach middle age, you will rise to a prominent position and your luck really changes for the better.