Dichotic listening asymmetry: Sex differences and menstrual cycle effects
| Autor: | Meghana B. Wadnerkar, Patricia E. Cowell, Sandra P. Whiteside |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Adult
Male medicine.medical_specialty Low oestrogen media_common.quotation_subject Audiology Dichotic Listening Tests Developmental psychology Sex Factors Arts and Humanities (miscellaneous) Prohibitins medicine Humans Gonadal Steroid Hormones General Psychology Menstrual cycle media_common Dichotic listening Ovary Brain General Medicine Perceptual performance Menstruation Menstrual cycle phase Laterality Speech Perception Female Psychology |
| Zdroj: | Laterality: Asymmetries of Body, Brain and Cognition. 13:297-309 |
| ISSN: | 1464-0678 1357-650X |
| DOI: | 10.1080/13576500701821106 |
| Popis: | The impact of menstrual cyclicity and sex differences on dichotic listening was studied in 25 women and 20 men (aged 20-25 years). Dichotic listening was administered using consonant-vowel (CV) stimuli and tested across three attention conditions. Women were tested at two points in the menstrual cycle (Day 2-5: low oestrogen and progesterone/Low-EP; Day 18-25: high oestrogen and progesterone/High-EP). Men were tested once. Performance averaged across attention conditions was analysed for menstrual cycle and sex effects. Significant menstrual cycle phase effects were observed in women. At the High-EP phase women showed a greater right ear advantage (REA) compared to the Low-EP phase. Sex differences were found when dichotic listening asymmetry in men was compared to women at the Low-EP, but not the High-EP phase. In contrast to laterality effects, baseline perceptual performance (total right plus left ear response) was similar in men and women at both phases of the menstrual cycle. Results support a role for ovarian hormones in shaping laterality of speech perception in women. This study also emphasises the importance of considering menstrual cycle effects when evaluating sex differences in dichotic listening. |
| Databáze: | OpenAIRE |
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