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Sex differences in the processing of odd and even numbers
T M Hines1, A Herman-Jeglińska, D Bednarek
1Psychology Department, Pace University, Pleasantville NY 10570, USA.
Acta Neurobiologiae Experimentalis
|January 1, 1996
Summary
The "odd effect," where odd numbers take longer to process than even numbers, is influenced by stimulus format and sex. This suggests higher-order cognitive processing rather than simple verbal coding.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Human-Computer Interaction
Background:
- The odd effect describes slower decision times for odd numbers compared to even numbers.
- Sex differences exist in cognitive processing: females excel with linguistic stimuli, males with spatial stimuli.
Purpose of the Study:
- To investigate how number format (digits, words, dot patterns) and sex influence the odd effect.
- To explore the cognitive underpinnings of the odd effect, considering modality-specific processing.
Main Methods:
- Male and female participants performed odd-even classification tasks.
- Numbers were presented in three formats: digits, number words, and dot patterns.
- Decision times were recorded and analyzed based on number parity, format, and participant sex.
Main Results:
- Males exhibited the odd effect specifically with dot pattern stimuli.
- Females showed the odd effect exclusively with number word stimuli.
- The odd effect was most pronounced when stimuli matched sex-specific processing strengths.
Conclusions:
- The odd effect is modulated by the interaction between stimulus format and sex.
- Findings suggest the odd effect may arise from higher-order cognitive representations, not solely linguistic coding.
- This implies modality-specific processing efficiency influences numerical cognition.