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Auditory localization of infants as a function of reinforcement conditions
Insights
Infant auditory localization is influenced by reinforcement. Complex visual stimuli, like animated toys, were most effective in encouraging localization responses in infants aged 12-18 months.
Area of Science:
- Developmental Psychology
- Auditory Perception
- Behavioral Science
Background:
- Auditory localization is a crucial developmental skill.
- Understanding factors influencing infant auditory localization is important for early intervention and developmental research.
Purpose of the Study:
- To investigate the impact of different reinforcement conditions on auditory localization behavior in infants.
- To determine if the type of reinforcement affects the efficacy of auditory localization responses.
Main Methods:
- Forty-eight infants (12-18 months) were divided into four groups.
- Each infant received 30 auditory stimulus presentations.
- Groups received varied reinforcement: none, social, simple visual (light), or complex visual (toy).
Main Results:
- Complex visual reinforcement (animated toy) yielded the highest number of localization responses.
- Simple visual reinforcement (blinking light) also significantly increased responses.
- Social reinforcement showed a moderate effect, while no reinforcement yielded the fewest responses.
Conclusions:
- Infant auditory localization behavior is demonstrably influenced by reinforcement.
- The effectiveness of reinforcement is contingent upon its type, with complex visual stimuli being most potent.
Abstract:
The influence of four reinforcement conditions on the auditory localization behavior of normal infants was studied. Forty-eight infants 12 to 18 months of age were assigned to one of four groups of 12 subjects each. All received 30 presentations of complex noise at suprathreshold level. After each response to the stimulus, Group 1 received no reinforcement, Group 2 received social reinforcement, Group 3 received "simple" visual reinforcement (a blinking light), and Group 4 received "complex" visual reinforcement (an animated toy animal). The two visual reinforcement conditions produced the most localization responses, followed in order by the social reinforcement and no reinforcement conditions. These results indicate that auditory localization behavior of infants is influenced by reinforcement and that the extent of this effect is related to the type of reinforcement employed.