Cherry selective care experiment

Cherry selective care experiment is a scientific study that analyzes the functioning of the listening process.

The process of separating sound into simple auditory components, or elements, was called "Auditory continuous analysis or segregation". Said ability to segregate complex sounds It is the one that allows individuals to differentiate a sound origin from another.

For many specialists it is of great interest to analyze how the continuum segregation process works. For example, Almost all people have once tried to follow two conversations at the same time.

A noticeable example of this is what is known in psychology as the effect "Cocktail Party". That is, if a person is at a party talking to a friend and suddenly listens to his name behind him, that person will try to carefully attend what they are saying about her.

Content

• I listen to dicotic
• Cherry selective care experiment
• Factors that make selection possible
• The semantic processing of the information not addressed
  • Bibliography

I listen to dicotic

In the fifties the paradigm of the dicotic listening was developed, which receives that name, since two different sounds were presented to the subject in each of their ears.

For example: a list of words was presented in one ear and in his other ear a list of digits. Following the assumptions of dicotic listening, there was the impression of being able to listen to two separate auditory flows.

Cherry selective care experiment

In your experiments, Colin Cherry (1953), one of the pioneers to apply the dicotic listening paradigm, asked individuals to quickly repeat any of the messages and ignore the other. This action was called "shadow".

The result is that when the subjects were asked about the information that had been presented in the ear that they did not attend -not shading -they were unable to give information about what had been presented to them, being their only perception to have the credit Listened to sounds.

Apparently, certain properties of ignored messages were identified, but, other more elaborate elements, such as language, words or semantic content, they went unnoticed.

As Carboni and Barg indicate, in their article on the attention, Cherry's investigations were very relevant, since they revealed the importance of the physical and semantic attributes of the stimuli, which laid the foundations for subsequent research.

Thus it was discovered that The unbeated message is processed to some extent prior to conscious experience, just before the information access consciousness and can be transmitted.

Factors that make selection possible

Among the factors that make possible the selection of certain sound stimuli, are the following:

• Space location: The ears act as different processing channels, but, when the interference between them is high, then the number of active channels increases. Therefore, attending an important auditory message, considering its spatial location, has limitations.
• Temporary lag: To make the selection of the most important channel in dicotic listening more, it is necessary that both messages separate, applying a slight temporary lag between them. This implies that, under dicotic conditions, not only is the physical location of the message relevant, but also the temporary lag between the words of each message, or asynchrony.
• Tone: This acts as a filter and allows information or other to be selected. This is why people are more easily given by being able to attend a message and ignore another if the voices are of a different gender, unlike when they belong to the same genre.

The semantic processing of the information not addressed

With Cherry's selective care experiment, it was evident that many people were able to listen to their name, even if they came from an ignored channel. When people were warned, in the experiment, that they could stop the information presented "in the ear", only 8% of the participants did so.

However, if that same indication was presented to the subjects presenting their name (“Maria, you can stop now”), the number of participants that stopped increased to 33%.

Starting from the Cherry selective care experiment, other researchers could also apply their own experiments and reach more conclusions. In one of the subsequent experiments, because Cherry was the first to do so, two different messages were presented to a subject, but the messages were recorded with the same voice.

In that case, the two messages were fractionated, that is, the first half was presented in one ear and the other half in the other. The results allowed to affirm that the unbeated channel information could be analyzed at the semantic level. All these findings were thanks to Cherry's selective care experiment.

The black leg test, what is it and what it analyzes

Bibliography

• Bottle, j. (1997). Compatibility paradigms in the study of selective care. Psychology studies, 18 (57), 79-92.
• Martínez, p. R. M. (2008). Perceptual organization and attention: Effects of pre -service processing on the functioning of selective care (Dissertation Doctoral, UNED. National University of Distance Education (Spain)).
• Ruiz, p., Apud, i., Maiche, a., González, h., Pires, a. C., Carboni, a.,… & González Perilli, F. (2016). INTRODUCTION MANUAL TO COGNITIVE PSYCHOLOGY.
• Styles, e. TO. (2010). PSYCHOLOGY OF ATTENTION. Editorial Ramón Areces Studies Center.