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Left hemispheric dominance of language processing and handedness, previously thought to be …


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Biology Articles » Zoology » Primatology » Sex-specific asymmetries in communication sound perception are not related to hand preference in an early primate » Table 1

Table 1
- Sex-specific asymmetries in communication sound perception are not related to hand preference in an early primate

Head turn index and number of subjects that did not turn their head (no) and that turned their head to the right side (R) or to the left side (L) for conspecific and control playback stimuli (non-biological sound; heterospecific evolutionarily far related species; heterospecific evolutionarily closely related species).

      Males
 Females
  N
 No.
 R
 L
 Index
 R
 L
 Index
Conspecific communication sounds
Whistle
 31
 8
 10
 2
 0.67*
 5
 6
 -0.09
Tsak
 33
 5
 11
 2
 0.69*
 7
 8
 -0.07
Trill
 28
 0
 10
 6
 0.25
 4
 8
 -0.33
Non-biological sounds
Noise
 37
 11
 7
 6
 0.08
 5
 8
 -0.23
12 kHz
 30
 10
 6
 3
 0.33
 6
 5
 0.09
Heterospecific evolutionarily far related species
Bat
 31
 9
 8
 4
 0.33
 6
 4
 0.20
Heterospecific evolutionarily closely related species (Microcebus lehilahytsara)
Whistle
 28
 6
 7
 4
 0.27
 6
 5
 0.09
Tsak
 32
 4
 11
 3
 0.57
 9
 5
 0.29
Trill
 29
 7
 7
 6
 0.08
 3
 6
 -0.33
Heterospecific evolutionarily closely related species (Microcebus ravelobensis)
Whistle
 33
 7
 6
 8
 -0.14
 7
 5
 0.17
Tsak
 26
 4
 6
 7
 -0.08
 6
 3
 0.33
Trill
 27
 3
 5
 6
 -0.09
 8
 5
 0.23

* p < 0.05

Scheumann and Zimmermann BMC Biology 2008 6:3   doi:10.1186/1741-7007-6-3


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