J T Manning

Summary

Affiliation: University of Central Lancashire
Country: UK

Publications

  1. ncbi request reprint Melanin and HIV in sub-Saharan Africa
    John T Manning
    Population Biology Research Group, School of Biological Sciences, University of Liverpool, P O Box 147, Liverpool L69 3BX, UK
    J Theor Biol 223:131-3. 2003
  2. ncbi request reprint Photocopies yield lower digit ratios (2D:4D) than direct finger measurements
    John T Manning
    Department of Psychology, University of Central Lancashire, Preston, England
    Arch Sex Behav 34:329-33. 2005
  3. pmc Second to fourth digit ratio and face shape
    Bernhard Fink
    Department for Sociobiology Anthropology, Institute for Zoology and Anthropology, University of Gottingen, Berliner Strasse 28, D 37073 Götingen, Germany
    Proc Biol Sci 272:1995-2001. 2005
  4. ncbi request reprint The effects of sex, ethnicity, and sexual orientation on self-measured digit ratio (2D:4D)
    John T Manning
    Department of Psychology, University of Central Lancashire, Preston, PR1 2HE, UK
    Arch Sex Behav 36:223-33. 2007
  5. ncbi request reprint Visuospatial performance on an internet line judgment task and potential hormonal markers: sex, sexual orientation, and 2D:4D
    Marcia L Collaer
    Department of Psychology and Program in Neuroscience, 5605 Middlebury College, Middlebury, Vermont 05753, USA
    Arch Sex Behav 36:177-92. 2007
  6. pmc Breast asymmetry and predisposition to breast cancer
    Diane Scutt
    Division of Medical Imaging, University of Liverpool, Liverpool L69 3BX, UK
    Breast Cancer Res 8:R14. 2006
  7. ncbi request reprint 2nd to 4th digit ratio and a universal mean for prenatal testosterone in homosexual men
    J T Manning
    School of Biological Sciences, University of Liverpool, UK
    Med Hypotheses 61:303-6. 2003
  8. ncbi request reprint Second to fourth digit ratio (2D:4D) and testosterone in men
    J T Manning
    Department of Psychology, University of Central Lancashire, Preston PR1 2HE, UK
    Asian J Androl 6:211-5. 2004
  9. ncbi request reprint Second to fourth digit ratio: ethnic differences and family size in English, Indian and South African populations
    J T Manning
    School of Biological Sciences, The University of Liverpool, Liverpool, UK
    Ann Hum Biol 30:579-88. 2003
  10. ncbi request reprint The androgen receptor gene: a major modifier of speed of neuronal transmission and intelligence?
    J T Manning
    Department of Psychology, University of Central Lancashire, Preston, UK
    Med Hypotheses 68:802-4. 2007

Detail Information

Publications42

  1. ncbi request reprint Melanin and HIV in sub-Saharan Africa
    John T Manning
    Population Biology Research Group, School of Biological Sciences, University of Liverpool, P O Box 147, Liverpool L69 3BX, UK
    J Theor Biol 223:131-3. 2003
    ..There is no such relationship in populations outside sub-Saharan Africa. We suggest that melanin concentration in black people may correlate with resistance to HIV infection...
  2. ncbi request reprint Photocopies yield lower digit ratios (2D:4D) than direct finger measurements
    John T Manning
    Department of Psychology, University of Central Lancashire, Preston, England
    Arch Sex Behav 34:329-33. 2005
    ..We suggest that finger length differences between the two techniques could result from the shapes of fat-pads at the tips of the fingers and these may be dependent on sex and sexual orientation...
  3. pmc Second to fourth digit ratio and face shape
    Bernhard Fink
    Department for Sociobiology Anthropology, Institute for Zoology and Anthropology, University of Gottingen, Berliner Strasse 28, D 37073 Götingen, Germany
    Proc Biol Sci 272:1995-2001. 2005
    ....
  4. ncbi request reprint The effects of sex, ethnicity, and sexual orientation on self-measured digit ratio (2D:4D)
    John T Manning
    Department of Psychology, University of Central Lancashire, Preston, PR1 2HE, UK
    Arch Sex Behav 36:223-33. 2007
    ..In comparison, our self-reported measures gave higher mean 2D:4D, lower effect sizes, and, in some instances, different patterns of effect size. The implications of our findings for future research into 2D:4D are discussed...
  5. ncbi request reprint Visuospatial performance on an internet line judgment task and potential hormonal markers: sex, sexual orientation, and 2D:4D
    Marcia L Collaer
    Department of Psychology and Program in Neuroscience, 5605 Middlebury College, Middlebury, Vermont 05753, USA
    Arch Sex Behav 36:177-92. 2007
    ....
  6. pmc Breast asymmetry and predisposition to breast cancer
    Diane Scutt
    Division of Medical Imaging, University of Liverpool, Liverpool L69 3BX, UK
    Breast Cancer Res 8:R14. 2006
    ....
  7. ncbi request reprint 2nd to 4th digit ratio and a universal mean for prenatal testosterone in homosexual men
    J T Manning
    School of Biological Sciences, University of Liverpool, UK
    Med Hypotheses 61:303-6. 2003
    ..Speculations regarding the effect of early sex steroids on the health of male homosexuals should therefore focus on the effects of prenatal testosterone levels associated with 2D:4D ratios of between 0.96 and 0.97...
  8. ncbi request reprint Second to fourth digit ratio (2D:4D) and testosterone in men
    J T Manning
    Department of Psychology, University of Central Lancashire, Preston PR1 2HE, UK
    Asian J Androl 6:211-5. 2004
    ..To investigate the relationship between 2D:4D and testosterone in men attending an infertility clinic and men drawn from the general population...
  9. ncbi request reprint Second to fourth digit ratio: ethnic differences and family size in English, Indian and South African populations
    J T Manning
    School of Biological Sciences, The University of Liverpool, Liverpool, UK
    Ann Hum Biol 30:579-88. 2003
    ..Negative associations between male 2D:4D and family size and positive associations between female 2D:4D and family size have been found in some European populations...
  10. ncbi request reprint The androgen receptor gene: a major modifier of speed of neuronal transmission and intelligence?
    J T Manning
    Department of Psychology, University of Central Lancashire, Preston, UK
    Med Hypotheses 68:802-4. 2007
    ..In support of the model I discuss the link between the X-chromosome and g, the comparative structure of the AR gene in the primates, and the variation in CAGn and g in human ethnic groups...
  11. ncbi request reprint Sex and ethnic differences in 2nd to 4th digit ratio of children
    J T Manning
    Department of Psychology, The University of Central Lancashire, Preston PR1 2HE, UK
    Early Hum Dev 80:161-8. 2004
    ..However, little is known of the patterns of sex and ethnic differences in the 2D:4D ratio of children...
  12. ncbi request reprint Endurance running and digit ratio (2D:4D): implications for fetal testosterone effects on running speed and vascular health
    John T Manning
    Department of Psychology, University of Central Lancashire, Preston, United Kingdom
    Am J Hum Biol 19:416-21. 2007
    ..Early populations of Homo may have been strongly selected for ER and high prenatal T. The implications of this for patterns of predisposition to cardiovascular disease in modern Homo are discussed...
  13. ncbi request reprint "Constitutive" skin pigmentation: a marker of breast cancer risk?
    J T Manning
    Department of Psychology, University of Central Lancashire, Preston PR1 2HE, UK
    Med Hypotheses 63:787-9. 2004
    ..Scores for 'constitutive' skin pigment may therefore be predictive of risk for breast cancer and low scores could be used to identify individuals at high risk...
  14. ncbi request reprint 2nd to 4th digit ratio and offspring sex ratio
    J T Manning
    Population Biology Research Group, School of Biological Sciences, University of Liverpool, Liverpool, UK
    J Theor Biol 217:93-5. 2002
    ..We present evidence from three populations (English, Spanish and Jamaican) that 2D:4D is negatively related to sex ratio, independent of the sex and ethnicity of the parents...
  15. ncbi request reprint The ratio of 2nd to 4th digit length: a proxy for transactivation activity of the androgen receptor gene?
    J T Manning
    School of Biological Sciences, University of Liverpool, Liverpool, UK
    Med Hypotheses 59:334-6. 2002
    ..Findings from 2D:4D studies predict that short CAG length will be common in autism and Asperger's syndrome, while high numbers of CAG repeats will be found in men who are prone to early myocardial infarction...
  16. ncbi request reprint The 2nd to 4th digit ratio and autism
    J T Manning
    Population and Evolutionary Biology Research Group, School of Biological Sciences, University of Liverpool, United Kingdom
    Dev Med Child Neurol 43:160-4. 2001
    ..It was concluded that 2D:4D ratio may be a possible marker for autism which could implicate prenatal testosterone in its aetiology...
  17. ncbi request reprint The ratio of 2nd to 4th digit length: a new predictor of disease predisposition?
    J T Manning
    School of Biological Sciences, University of Liverpool, Liverpool, UK
    Med Hypotheses 54:855-7. 2000
    ..We suggest that 2D:4D ratio is predictive of these diseases and may be used in diagnosis, prognosis and in early life-style interventions which may delay the onset of disease or facilitate its early detection...
  18. ncbi request reprint The ratio of 2nd to 4th digit length: a proxy for testosterone, and susceptibility to HIV and AIDS?
    J T Manning
    School of Biological Sciences, University of Liverpool, UK
    Med Hypotheses 57:761-3. 2001
    ..Infection rates may therefore be reduced by education and condom supply directed towards low 2D:4D adults...
  19. ncbi request reprint The ratio of 2nd to 4th digit length and performance in skiing
    J T Manning
    School of Biological Sciences, University of Liverpool, Liverpool, UK
    J Sports Med Phys Fitness 42:446-50. 2002
    ..There is evidence that low 2D:4D ratio is associated with high prenatal and adult levels of testosterone, good visuo-spatial ability, protection against heart attack, high self-reported sporting attainment and good soccer ability...
  20. ncbi request reprint Finger and toe ratios in humans and mice: implications for the aetiology of diseases influenced by HOX genes
    J T Manning
    School of Biological Sciences, University of Liverpool, UK
    Med Hypotheses 60:340-3. 2003
    ....
  21. doi request reprint Digit ratio (2D:4D), dominance, reproductive success, asymmetry, and sociosexuality in the BBC Internet Study
    John T Manning
    Department of Psychology, University of Central Lancashire, Preston, United Kingdom
    Am J Hum Biol 20:451-61. 2008
    ..We compare our findings with a similar study reported by Putz et al. (2004), which found only 2 out of 57 correlations to be significant and discuss possible reasons for the discrepancies between the studies...
  22. ncbi request reprint A comparison of finger 2D:4D by self-report direct measurement and experimenter measurement from photocopy: methodological issues
    Noreen Caswell
    Department of Psychology, University of Central Lancashire, Preston, England
    Arch Sex Behav 38:143-8. 2009
    ..We suggest that large samples are necessary in Internet studies of 2D:4D because measurement error will reduce effect sizes...
  23. doi request reprint Digit ratio (2D:4D) in Klinefelter's syndrome
    J T Manning
    Department of Psychology, Swansea University, Swansea, UK
    Andrology 1:94-9. 2013
    ..We conclude that KS males have mean 2D:4D values similar to those found in female population norms. In addition, testosterone supplementation in KS males may be most common for individuals with low right 2D:4D...
  24. ncbi request reprint The second to fourth digit ratio and asymmetry
    John T Manning
    Department of Psychology, University of Central Lancashire, Preston, UK
    Ann Hum Biol 33:480-92. 2006
    ..One cause of such perturbations may be sex steroids such as testosterone and oestrogen...
  25. ncbi request reprint Evidence for assortative mating on digit ratio (2D:4D), a biomarker for prenatal androgen exposure
    Martin Voracek
    University of Vienna, Austria
    J Biosoc Sci 39:599-612. 2007
    ....
  26. ncbi request reprint Length of fingers and penis are related through fetal Hox gene expression
    Martin Voracek
    Urology 62:201. 2003
  27. ncbi request reprint Second to fourth digit ratio and hand skill in Austrian children
    Bernhard Fink
    Ludwig Boltzmann Institute for Urban Ethology, University of Vienna, Althanstrasse 14, A 1090 Vienna, Austria
    Biol Psychol 67:375-84. 2004
    ....
  28. ncbi request reprint Repeatability and interobserver error of digit ratio (2D:4D) measurements made by experts
    Martin Voracek
    Department of Basic Psychological Research, School of Psychology, University of Vienna, A 1010 Vienna, Austria
    Am J Hum Biol 19:142-6. 2007
    ..Some practical recommendations for 2D:4D measurement are offered...
  29. ncbi request reprint Digit ratio and hand-grip strength in German and Mizos men: cross-cultural evidence for an organizing effect of prenatal testosterone on strength
    Bernhard Fink
    Department of Sociobiology Anthropology, University of Gottingen, Gottingen, D 37073, Germany
    Am J Hum Biol 18:776-82. 2006
    ..Measures of grip strength correlate strongly with strength in other muscle groups, so we conclude that PT may have an early organizing effect on strength in men, and this is likely to be widespread in human groups...
  30. ncbi request reprint Hand preference for writing and associations with selected demographic and behavioral variables in 255,100 subjects: the BBC internet study
    Michael Peters
    Department of Psychology, University of Guelph, Guelph, Ont, Canada NIG 2W1
    Brain Cogn 62:177-89. 2006
    ..Due to a lack of statistical power in most studies in the literature, the "either" hand writing preference group that yielded the most salient results in this study is not normally available for analysis...
  31. ncbi request reprint The effects of sex, sexual orientation, and digit ratio (2D:4D) on mental rotation performance
    Michael Peters
    Department of Psychology, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
    Arch Sex Behav 36:251-60. 2007
    ....
  32. pmc Second to fourth digit ratio, testosterone and perceived male dominance
    Nick Neave
    Human Cognitive Neuroscience Unit, School of Psychology and Sport Sciences, Northumberland Building, Northumbria University, Newcastle upon Tyne NE1 8ST, UK
    Proc Biol Sci 270:2167-72. 2003
    ..We conclude that facial dominance and masculinity reflect a male's perceived status rather than his physical attraction to women...
  33. ncbi request reprint Digit ratio (2D:4D) in homosexual and heterosexual men from Austria
    Martin Voracek
    Department of Psychology, University of Vienna, Vienna, Austria
    Arch Sex Behav 34:335-40. 2005
    ..It is concluded that more data are required to clarify whether or not there is a 2D:4D effect for sexual orientation in men...
  34. ncbi request reprint MRI-assessed volume of left and right hippocampi in females correlates with the relative length of the second and fourth fingers (the 2D:4D ratio)
    Janos Kallai
    Institute of Psychology, University of Pecs, Szigeti u12, H 7624 Pecs, Hungary
    Psychiatry Res 140:199-210. 2005
    ..Other brain regions such as the amygdala, the cerebral cortex, the total volume hippocampus, and the head of the hippocampus did not show such a difference...
  35. ncbi request reprint A reanalysis of five studies on sexual orientation and the relative length of the 2nd and 4th fingers (the 2D:4D ratio)
    Dennis McFadden
    Department of Psychology and Center for Perceptual Systems, University of Texas, Austin, Texas 78712 0187, USA
    Arch Sex Behav 34:341-56. 2005
    ..The constancy of the 2D:4D ratio for the White homosexuals did not appear to extend to homosexuals of three other ethnicities, and there were also subpopulation differences related to right or left hands...
  36. ncbi request reprint 2nd to 4th digit ratio (2D:4D) and number of sex partners: evidence for effects of prenatal testosterone in men
    Johannes Hönekopp
    Department of Psychology, Technical University of Chemnitz, D 09120 Chemnitz, Germany
    Psychoneuroendocrinology 31:30-7. 2006
    ..We conclude that male NSP is likely to be influenced by the long-term organisational effects of prenatal testosterone. The relationship between NSP and 2D:4D appears to be confined to heterosexual men...
  37. ncbi request reprint Increased bone marrow iron stores is an independent risk factor for invasive aspergillosis in patients with high-risk hematologic malignancies and recipients of allogeneic hematopoietic stem cell transplantation
    Dimitrios P Kontoyiannis
    Department of Infectious Diseases, Infection Control, and Employee Health, The University of Texas M D Anderson Cancer Center, Houston, Texas 77030, USA
    Cancer 110:1303-6. 2007
    ..Laboratory studies have demonstrated that iron is essential for Aspergillus growth and virulence...
  38. ncbi request reprint A pilot study of rituximab in patients with recurrent, classic Hodgkin disease
    Anas Younes
    Department of Lymphoma Myeloma, The University of Texas, M D Anderson Cancer Center, Houston, Texas 77030, USA
    Cancer 98:310-4. 2003
    ..Rituximab is used to primarily deplete normal B cells from HD lesions...
  39. ncbi request reprint Second to fourth digit ratio and numerical competence in children
    Bernhard Fink
    Department for Sociobiology Anthropology, University of Goettingen, Goettingen, Germany
    Brain Cogn 61:211-8. 2006
    ....
  40. ncbi request reprint A trade-off between early growth rate and fluctuating asymmetry in Brazilian boys
    Jonathan C K Wells
    MRC Childhood Nutrition Research Centre, Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK
    Ann Hum Biol 33:112-24. 2006
    ..Alternatively, FA could signal the degree of within-lifetime exposure to stress, in particular during specific sensitive periods of development--the 'good development' hypothesis...
  41. ncbi request reprint Physical attractiveness and health: comment on Weeden and Sabini (2005)
    Karl Grammer
    Ludwig Boltzmann Institute for Urban Ethology, University of Vienna, Vienna, Austria
    Psychol Bull 131:658-61. 2005
    ..The authors suggest that future research in this field should seek conceptual and methodological constancy in trait selection and in the evaluation of attractiveness- and health-related traits...
  42. ncbi request reprint Myeloid sarcoma involving the gynecologic tract: a report of 11 cases and review of the literature
    Mar Garcia Garcia
    Department of Hematopathology, University of Texas M D Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
    Am J Clin Pathol 125:783-90. 2006
    ..Following chemotherapy, complete remission and long-term survival were achieved in a subset of patients, as was particularly true for 2 patients (cases 8 and 10), with complete remission 12.5 and 31 years after diagnosis, respectively...