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Assessing Human Spatial Navigation in a Virtual Space and its Sensitivity to Exercise

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The relationship between second to fourth digit ratio, spatial cognition, and virtual navigation.

Nicole T Nowak¹, Scott D Moffat

¹Department of Psychology, Wayne State University, Detroit, MI, USA.

Archives of Sexual Behavior

|September 3, 2010

Summary

Prenatal androgen exposure, indicated by the 2D:4D ratio, may influence spatial abilities. This study found no consistent link between digit ratio and spatial performance in young adults, despite known sex differences.

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Area of Science:

Neuroscience
Human Biology
Psychology

Background:

Early life androgen exposure is hypothesized to impact later spatial performance.
The second to fourth digit ratio (2D:4D) is proposed as a marker for prenatal androgen exposure.
Existing research on 2D:4D ratio and spatial performance shows equivocal results.

Purpose of the Study:

To investigate the relationship between 2D:4D ratio, spatial cognition, and spatial navigation.
To examine these relationships in young adult men and women.

Main Methods:

A virtual Morris water task (vMWT) was employed to assess spatial navigation.
Digit ratio (2D:4D) was measured as an index of prenatal androgen exposure.
Spatial cognition and navigation were evaluated in 140 young adults.

Main Results:

Sex differences in 2D:4D ratio and vMWT performance were consistent with prior literature.
No significant or consistent relationship was found between 2D:4D ratio and spatial cognition or navigation in either sex.
The study replicated known sex differences in spatial abilities and digit ratios.

Conclusions:

The 2D:4D ratio did not reliably predict spatial cognition or navigation in this sample.
The findings question the utility of 2D:4D ratio as a consistent marker for androgen effects on spatial abilities in young adults.
Further research is needed to clarify the complex interplay between prenatal androgens and spatial development.