Most people tend to think that whenever they see someone a tightened fist represents anger and that person are ready for a fight. However, that is not the case now as a new study suggests that a tightened fist is a great way of recalling memory.
Along with the discovery are the difference between squeezing your right and left fist. Both movements stimulate memory function, but they differ in that squeezing your right fist means that you can better memorize an event or action. While tightening your left fist means that you can better recall any past event or action.
The study by can be read in the open access journal PLOS ONE.
During the research, Ruth Propper and colleagues asks the participants formed five groups and each group were asked to memorize 72 words. Later on, they were asked to recall all 73 words.
Four groups were suggested to clench their hands; the first group tightened their fist for about 90 seconds before they memorized the list of words and did the same before they recall all the words.
The second group tightened their left fist before they memorized and recollected. The third and the fourth group tightened one hand prior to memorizing (either the left or right hand) and the opposite hand prior to recollecting. However, the last group never tightened their fist at any point.
The group that clenched their right fist when memorizing the list and then clenched the left when recollecting the words was found to have the best memory, at least better than all the other groups. They also performed better than the last group who never did tighten their fist.
Researchers believe that a simple body movement can change how brains function.
Researchers claimed that the effect of hand-clenching on memory may result from cognitive overspill as tightening a fist trigger certain regions of the brain that is connected with the formation of memory.