HOW TO RECOGNIZE THE HAND IN FRAGILE X SYNDROME? (GENETIC VARIANT OF AUTISM) – 28 Characteristics!
February 24, 2010
How to recognize the hand in Fragile X syndrome? Alexander Rodewald presented in 1986 the very first ‘phantom picture’ describing the typical hand characteristics in Fragile X syndrome (e.g. including the simian crease or Sydney line). But more detailed ‘phantom pictures’ were never presented after the A. Rodewald et al. (1986) publication. However, this month (february 2010) an updated ‘phantom picture’ has become available – featuring 28 characteristics of the hand in Fragile X syndrome (+ a couple of other hand related characteristics). What are typical hand characteristics in Fragile X syndrome? HAND LINES: DERMATOGLYPHICS: HAND SHAPE: NOTICE: The author of the new ‘phantom picture’ for Fragile X syndrome described a specific guideline which states that in most cases of Fragile X syndrome certain combinations of the 28 characteristics are found in both the fingers AND the palm of the hand! More details available at: Photo: the hand of a baby hand with hyperextensible finger joints – often seen in Fragile X syndrome. |
DERMATOGLYPHICS – Introduction to the patterns in the skin ridges of the human hand!
February 2, 2010
Dermatoglyphics – News, reports & research! The word ‘dermatoglyphics‘ was introduced in 1926 by Harold Cummins – the word refers directly to the study of the patterns & characteristics of the skin ridges in the human hand (and foot). What are the basic characteristics of the dermatoglyphics in the human hand? FINGERPRINT DERMATOGLYPHICS: In most populations around the world is the ‘ulnar loop’ the most observed fingerprint pattern (see: the fingerprint of the pinky finger in the picture above). Loops are most frequently found on the little finger (and middle finger); loops are least frequently found on the pointer finger. PALMAR DERMATOGLYPHICS: The variations in the dermatoglyphics of the handpalm are much more complex than the variations in the fingerprints. An important element concerns the presence of the ‘palmar triradii’ (see: a, b, c, d, and t in the picture above): normally each finger is featured with a palmar triradius – triradius t belongs to the thumb (the thumb mouse – a.k.a. as the ‘thenar’, or in palmistry: ‘mount of Venus’ could be recognized as the third phalange of the thumb). T = L + D – 1 More details available via: Picture: example of the most common patterns in the dermatoglypics of the palm and fingers. [NOTICE: The picture below includes a small mistake: the hand palm usually has 1 single palmar ‘loop’ featured with 5 palmar triradii – this implicate that ‘c-line’ (which starts in the triradius below the ring finger) should have ended between the pinky finger and the end of the heart line – and not between the ring finger and middle finger as indicated by the picture] |
THE ‘MOON WHORL’ – A common characteristic in schizophrenia, Down’s syndrome… and autism?
November 24, 2009
The ‘Moon whorl’ a common characteristic in Down syndrome & schizophrenia The ‘whorl on the mount of Moon’ (a.k.a. the ‘hypothenar whorl’) is known as one of the mysterious characteristics that can only sometimes be found in the human hand. In 1943 Cummins & Midlo reported in their famous ‘Finger Prints, Palms & Soles’ statistics for a sample of 1281 German males. They found the ‘true whorl’ on the hypothenar in only 0.7% of right hands and 0.5% of left hands! What do we know about the ‘Moon whorl’? A few quote from the original article: “While the classic palmistry literature describes that the ‘hypothenar whorl’ (a.k.a. ‘whorl on mount of Moon’) can be recognized as a sign for finding a ‘highly imaginative person’, various scientific studies have indicated that dermatoglyphic whorls on the mount of moon are linked with Down’s syndrome + a few other medical problems.” NEW RESEARCH FINDING ON AUTISM! Another quote from the article: “A study on the hands of 30 people with autism (25 men, 5 women) revealed a surprizing high percentage of a specific (very rare) variant of the ‘hypothenar whorl’ – the ‘hypothenar composite whorl’.” Some examples of the ‘hypothenar composite whorl’ are presented below. In the perspective of the fact that in the science of fingerprints the ‘composite whorl’ is related to the ‘double loop’, it is interesting to notice here that the new finding appears to confirm an earlier reported finding which pointed out that the hands of people with autism are often featured with a ‘double loop’ in the fingerprint of the pinky finger and the presence of 2 palmar loops below that 5th finger. In cases you’re interested to learn more about the basics of fingerprint classification – the illustration below describes the 8 most common types of fingerprints (including: 2 ‘arch’ variants, 2 ‘loop’ variants, and 4 ‘whorl’ variants). SUGGESTIONS FOR FURTHER READING: • How fingerprinting works! PICTURE: In the science of fingerprints ‘whorls’ is known a one of the 3 basic patterns (next to ‘loops’ and ‘arches’) – about 75% of people have at least 1 fingerprint whorl! |
Usain Bolt has the marker for sprint talent: a long ring finger! The 2008 olympics in Beijing pointed out that Jamaican sprinter Usain Bolt is the fastest man on sprint ever! And last sunday he set another new world record at the Athletics World Championships 2009 Berlin. How come that Jamaican sprinters run so fast? Earlier this year British researchers studied the hands of 241 boys aged 10 to 17 who took part in a sports talent-spotting competition in Qatar. And the results pointer out that a low 2D:4D finger ratio is linked with a fast sprint! Professor John T. Manning (a.k.a. ‘the finger professor’) about the research: “We found finger ratios of the right and left hand were positively linked with sprinting times in boys. The advantage they had was soon apparent after the start of the sprint and remained steady thereafter.” Previous studies have confirmed the link between finger length and sprint talent: long-distance runners have the same hand characteristics – a ‘low 2D:4D finger ratio. But to understand the implications in this perspective one should be aware that the long ring fingers has also been linked with other ‘testosterone’ related matters such as: a lower risk of heart disease and good results in exam success in mathematics, to male aggression and higher earnings at the London Stock Exchange. So the predictive value of a long ring finger is actually pretty, and certainly not reliable in individual subjects. Nevertheless, John T. Manning has described in his first book – ‘Digit Ratio’ – that the hands of Jamaicans are usually featured with a relatively long ring finger – which is confirmed by various hand photos of the most successful sprinters from Jamaica (see the photo below). RELATED ARTICLES: • The hands Usain Bolt – olympic world record holder sprint! |
Your five fingers reveal 5 things – about: evolution, sports, social behavior, disease & your sex-life!
March 13, 2009
In 2008 Professor John Manning at the University of Swansea presented the book “The Finger Book”. The book explains how the ratio of the index finger and ring finger is related to various aspects life. Let’s take a look at his major findings + developments in the ‘finger research’ – including an update from 2009! |
WHAT FINGERS REVEAL ABOUT HUMAN EVOLUTION:
The human thumb is known as a ‘marker’ for the evolution of human kind; however our relative long index finger – compared to the ring finger – is a likewise example. In the chimpanzee and gorilla, this hand feature is different: they always have longer ring fingers and a short index finger. THE LONG RING FINGER & SPORTS: Exceptional performances in sports are being linked to the amount of male hormones that people absorb before birth while they stay in the womb. The ‘digit ratio’ has frequently been used to predict performances in various sports leagues. In this perspective another interesting research was presented in 2009: Research from the university of Cambridge points out that financial traders with the lowest ‘2D:4D digit ratios’ have earned 11 times more money than stock traders with a relatively high finger ratio – see the picture below. THE LONG INDEX FINGER & SOCIAL BEHAVIOR Interestingly, especially among children a short index finger may indicate a lack of empathic ability. In general: the longer the index finger, the more people are inclined to learn social behavior and to develop strong empathy for the feelings of others and yourself. CROSS-CONTAMINATION There is growing statistical evidence that our finger ratios are a reliable predictor of our receptiveness to diseases. However, in real life the findings have not yet shown to have a significant impact. YOUR FINGERS & YOUR SEX-LIFE Men with long ring fingers, consider themselves as attractive. Studies show that women in the general rule agree and confirm the judgements of these men. Surprisingly, a likewise result has been found in women. READ THE FULL ARTICLE + MORE: |
The function of fingerprints: ‘finger grip’ + ‘touch filter’: Many palmists & hand analysts including the fingerprints in a hand reading. But what is the basic function of our fingerprints really? Researchers from Paris (France) have recently presented new evidence that your fingerprints not only provide ‘finger-grip’, but the ridges also function as a filter for the human touch! |
The word ‘fingerprints’ refers to the impressions made by the skin ridges on the fingers & thumbs – by the way: palms can leave the same impressions: ‘palmprints‘.
The major function of these skin ridges is to provide ‘friction’, or ‘traction’, when we grasp objects in daily life. And as a consequence because of the presence of skin ridges on our fingers & palms, objects held in our hands do not slip through our fingers. For many years scientists believed that the fingerprints (skin ridges) have a second function: the enhancement of our sense of touch. But untill recentely there was hardly any hard evidence for this assumption. But times have changed since january 2009: French physicists at the ‘École Normale Supérieure‘ in Paris have presented new research. They found that the skin ridges (fingerprints) also amplify / filter vibrations triggered when our fingertips brush across an uneven surface. These processes help transmiting the signals of ‘touch’ to deeply embedded nerves involved in fine texture perception. Some facts reported by the French fingerprint research: • The researchers report that certain vibrations from the patterned fingertip are 100 times stronger than those from the smooth fingertip. • The distinctiveness of fingerprint patterns from one person to the next does NOT(!) seem to have an effect on filtering capabilities – so regarding the sensitivity for ‘finger-touch’ it hardly makes any difference what type of fingerprints you have! • The research was done with an ‘artificial fingertip’ – the first ever presented in the world! READ FURTHER ABOUT RELATED FINGERPRINT TOPICS: |
What do the hands of Albert Einstein reveal about his IQ, his suspected autism & his presumed left-handedness?’ The handprints were made in 1930 by Marianne Raschig, a palmist from Germany, who published the hands in her book “Hand und Persönlichkeit“. Let’s take a look at these very interesting high-quality handprints of Alber Einstein. |
EINSTEIN & HIS HIGH IQ
Obviously there is little doubt that Albert Einstein had a high IQ – for Einstein has become a classic example of ‘genius’. Nevertheless, it is very hard to describe how high Einstein’s IQ really was. 160? 190? He’s IQ is unknown, and we’ll probably never know how high Einstein’s IQ really was. What do Albert Einstein’s hands reveal about his IQ? In general, few researchers & palmists believe that high IQ can be recognized by certain hand features. Chirologist Arnold Holtzman described a few years ago that Einstein’s very short fingers (especially in his right hand – see the picture below) are related to Einstein’s genius. Holtzman writes in his book Psychodiagnostic Chirology (page 81) about short fingers: ‘individual intuitive faculties’ and ‘a cognitive style where invention expands’. Nevertheless, so far there appears to be no scientific evidence for relating Einstein’s short fingers to his high IQ. EINSTEIN & HIS SUSPECTED AUTISM UK researchers have said that they believe that Einstein was likely an example of Asperger syndrome (the high functioning variant of autism). What do Albert Einstein’s hands reveal about his suspect autism? The past few decades of scientific research indicate that a ‘low 2D:4D finger ratio’ could be one of the most significant hand features related to autism. And the high quality handprints of Einstein’s hands show that Einstein had a ‘digit ratio’ of about 0.93 – just below threshold which is often seen in the hands of people who have autism or Aspergers syndrome: digit ratio = 0.94 or lower. Confirming evidence for the UK researchers who believe that Einstein had autism. EINSTEIN & HIS PRESUMMED LEFT-HANDEDNESS Albert Einstein was a famous ‘lefty’. He wrote with his right hand, however many believe that Einstein was a lefty who was forced to write with his right hand. Einstein is known for using his left hand a lot (for example: he smoked his pipe often with his left hand). What do Albert Einstein’s hands reveal about his presumed left handedness? A comparison between the finger length of the right hand and the left hand reveals that the fingers of Albert Einstein’s left hand are rather remarkable longer. The biggest R-L difference can be observed in the middle finger: see the picture below. Dutch research on left handedness has indicated that when the longer fingers on the left hand are often observed in left handed people. READ FURTHER ABOUT RELATED HAND TOPICS: |
Palm reading & the ‘pinkie’: characteristics of the little finger relate to autism!
January 24, 2009
How the ‘pinky’ (little finger) relates to autism:
The presence of small physical defects – such as a curved little finger (the ‘pinky’ or ‘pinkie’) – and the occurrence of autism often go together. This is concluded by Ozgen – Dutch researcher at the UMC Utrecht, The Netherlands.
The conclusion is the result of a meta-analysis of seven studies (published in the years: 1975-2005) in which the characteristics of 330 patients and 328 healthy controls are integrated. Ozgen became PhD on November 28, and July (2009) the results of her study are published in the journal ‘Molecular Psychiatry’.
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Ozgen reports that the most significant physical defects related to autism are: (1) a ‘curved’ pinky finger, (2) toes slightly too far apart, (3) deformed ear lobes, (4) a higher palate, and (5) eyes slightly further apart.
In medical jargon the curved pinky (curved pinkie) is known as: clinodactlyly. Other common problems related to the pinky finger are: polydactyly (an extra pinky), camptodactyly (bent finger) & syndactyly (webbed fingers). How surprizing is this research result on the ‘curved’ little finger really? Maybe not so surprizing at all! For, in time a curved little finger has been related to up to over 60 medical syndromes, including: Klinefelter XXY syndrome, FAS: fetal alcohol syndrome (16% to 51%), and most common: Down syndrome (35% to 79%). However, one should also noticed here that the ‘curved’ little finger can be seen in the hands of healthy people as well. Statistics for normal & healthy people reported for the ‘curved’ little finger vary from: 1% to 19.5%. READ MORE ABOUT THE LITTLE FINGER:
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