Sebastian and Hernandez-Gil study
- Created by: 11pyoung
- Created on: 12-04-17 10:31
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- Sebastian and Hernandez-Gil study
- Aim
- To investigate the development of the phonological loop in children between the ages of 5 and 17 using digit span *** a measure of phonological capacity.
- Compared findings to previous research done on adults, aged, dementia patients and those living in countries speaking a different language.
- To investigate the development of the phonological loop in children between the ages of 5 and 17 using digit span *** a measure of phonological capacity.
- Procedure
- 570 volunteers taken from schools in Madrid
- All were native Spanish speakers and had no hearing, reading and writing impairments
- Divided into 5 age groups and the average digit span was recorded for each age
- When tested on their own, ppts were read increasing sequences to recall in the correct order
- Read at a rate of 1 per second
- Digits increased one per sequence
- The digit span was recorded as he maximum number recalled correctly without omission
- Digits increased one per sequence
- 570 volunteers taken from schools in Madrid
- Results
- Children aged 5 had a very low digit span
- Digit span steadily increased until age 11 when it slows
- Between the ages of 15-17 the digit span remains stable
- Results compared with previous research
- Elderly ppts had a significantly higher digit span when compared to 5 year olds
- Comparing the elderly and dementia patients showed no significant differences
- Ppts with advanced dementia and frontal variant frontotemporaldementia scored similar to 5 year olds
- Comparing the elderly and dementia patients showed no significant differences
- Digit span continues to increase in Spanish populations
- The overall capacity is less overall when compared to findings from Anglo-Saxon studies
- The decrease in phonological capacity could be accounted for by the nature of the Spanish language
- Sub-vocal rehearsal does not occur until 7-8 years old
- No difference until after this age
- Found to be true
- Difference found after 9 years old
- Digit span increases beyond the age of 15 years old in the Spanish population
- No difference until after this age
- Elderly ppts had a significantly higher digit span when compared to 5 year olds
- Conclusions
- Digit spans was found to increase with age
- Starting point is when sub-vocal rehearsal starts at 7 years old.
- Digit span in Spanish culture is significantly smaller then in Anglo-Saxon culture
- It is possible to say that digit span decreasing is due to ageing and not dementia
- Digit spans was found to increase with age
- Evaluation
- We rarely use memory to memorise lists in everyday life
- Everyday verbal memory is used to hold sequences of words to comprehend sentences
- Reliably linked to reading levels and intelligence
- Large sample size in the study
- Findings reliable and generalisable to the Spanish population
- Findings backed up by studies done in other countries
- We rarely use memory to memorise lists in everyday life
- Aim
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