Abstract:
My research topic is Handedness and Cognitive Development. This study is to locate the major differences in psychological, personal and physical changes of the right and the left-handed people and its– effect on their personality and way of living. Despite the right is considered as good and left is considered as bad, and also people try changing their children’s handedness from left towards right under religious perspective, researches have proved that the left-handed are much more intelligent. In the light of this research I will try to discuss the different perspective about the right and the left handers, and what are the mental and physical capabilities of both. This will not prove any one …show more content…
Handedness is referred to the use of right hand, left hand or one or the other depending on the activities. There are four states commonly defined for one’s handedness:
Right-handedness: Right-handedness is most common. Right-handed people are more skillful with their right hands when performing jobs. Studies suggest that 70–90% of the world population is right-handed.
Left-handedness: Left-handedness is less common than right-handedness. Left-handed people are more skillful with their left hands when performing jobs. Studies suggest that approximately 10% of the world population is left-handed.
Cross-dominance (Mixed-handedness): Cross-dominance is the change of hand preference between tasks. 30% population is Mixed handed and it is tough to detect the difference that either they are left/right handed or mixed …show more content…
A truly ambidextrous person is able to do any assigned task equally well with either hand. Those who learn it still tend to favor their originally dominant hand.
Basis of handedness:
Handedness is described and classified in different ways. Most people define handedness as the hand that one uses for writing. In the scientific community, some researchers define handedness as the hand that is more rapid and more accurate for manual tasks. Others define it as the favored hand, irrespective of its abilities.
There is no specific measure responsible for degrees of handedness. Some scientists consider that there are only two types of handedness: right and non-right. These examiners believe that true left-handedness is exceptional and most lefthanders are actually mixed-handed. Others believe that ambidexterity; the equal use of both hands is a third type of handedness, and some consider that there are two types of ambidexterity. Other experts believe that handedness should be measured on a scale from completely right-handed to completely