Low Level Laser Therapy and Memory Enhancement: Effect of Different Energy Doses

Short-term memory is the information we are currently aware of or thinking about. The amount of information that can be stored in short-term memory can vary. An often cited figure is plus or minus seven items, based on the results of a famous experiment on short-term memory. Use of various new techniques to enhance the training module certainly help the learning in college age population, but doesnot provide any solution to the biologically retarding memory due to stress and inflammation of the neurons of the brain. Our research aimed to study the effect different energy doses of Low Level Laser Therapy (LLLT) on memorizing capacity of the young population aged 20years to 30 years. For the purpose two equivalent tests of non-associated meaningful words were used. 106 subjects were divided into in Group A and Group B and each group took the "non-associated memory test" test, followed by Low Level Laser Therapytwice a week for four weeks. At the end of the 30 th day an equivalent "non-associated memory test" post test was taken and the data was analyzed. The memory retention score of Group A was increase by 29.7% after 8 applications of LLLT. On the other hand group B showed 2% increase after 8 applications of LLLT. In conclusion low level laser therapy, when used with the correct frequency, powered density and dose can be very effective in increasing the working memory of the test individuals.