Sample Essay: Two Point Discrimination in Hand And Fingers

ABSTRACT

The sensibility of touch in the human hand is one of the most important elements that make it possible for the hand to function well. Without the said existence of sensibility, the capability of the hand to hold, to touch or to do anything is lost; in short the hand becomes useless. There are actually two-point focus considerations when the idea of finger sensibility stimulation is placed into discussion. The understanding pertains to the thought that a person’s hand is composed of several activated points that are able to identify the stimulating points that allow immediate sending of message to the human brain making it easier for the brain to respond and push the hand and fingers to work towards what is required. These two-point focuses allows the skin to discriminate the stimulants and send out a message to the brain which the brain decrypts in an essence that would be meaningful to turn into a command that would be used to push the hand to respond. For a fact, around the body, there are actually different points of sensibility, meaning there are several parts where skin stimulation occurs. However, for the discussion that follows, as noted above, a concentration on the two point discrimination found in the hands and fingers shall be presented. Understanding how it practically affects the occurrence of touch sensibility and how important it is for the sake of developmental understanding in the field of science and medical technology shall be better investigated within the context of this research.

Chapter 1: Introduction

Background of the Study

The human hand is one of the most functional parts of the human body. It is quite unimaginable for a normal person to live freely without the perfect capability of the hand to function fully for the sake of the response to the need of the body to work or to move. This is specifically seen among those people who have less control of their hand function. But what makes the hand work as much as it does? The sensory receptors that the hand processes are like electric connections that link the feeling indicators of the hand, most likely the fingers, towards the brain which practically interprets the sense that the fingers receive. It could not be denied that it is through this particular process that the finger is able to adapt properly towards its responsibility and its expected role in the human body as it functions to respond to the stimulation of the brain’s command for it to act towards the said motivation of work.

This idealism towards the existence of stimulant receptors in the human body corresponds with the essentiality of the role that the skin pertains to. It could not be denied that within the skin that stretches through the entire body, the skin in the hands could be noted to be the most responsive part as it is the one responsible for noting the feel of the different things so as to allow humans to function well. As for a fact, within a day, an average human individual at least uses his hand for the 89% of his total physical activities. It could not be denied that this fact mirrors the idea that somehow, the consideration placed upon the existence of stimulation and receptor density within the skin around the hand and finger accounts so much for the elevation of the consideration on the message reception considered when it comes to the relay of hand function as per suggested from the brain towards the hand and the fingers as per expected.

Within the conditional presentation of research that is to be discussed herein, an evidential assumption on how the process of touch sensibility in the hand affects the function that it responses to as per demanded by the human brain shall be shown through the use of efficient references that are noted for their validity and comprehensive effective approach in discussing the topic considered herein.

Statement of the Problem

As mentioned within the prelude of this discussion, the issue to be given attention to within this research pertains to the role of touch stimulation perceived through the two point discrimination in the hand and fingers that basically outlines their capability to respond to the “call” or to the “message” sent from the brain for them to work with what is required. The “feel” or the message taken from the stimulation used through the application of the sense of touch is the particular source of competent reception that presents a source of message towards the connection that directly manifests the function existing between that of the brain and the hand-and-fingers which suggests immediate response to “touch stimulation”.  The understanding of the function of touch sensibility and receptor process existing within the two point discrimination identity of the hand and the fingers practically intend to make this research directly applicable when it comes to the creation of possible solutions to problems occurring in connection with the function of the hand and finger. As particular guide to the problem response to be hosted within this research, the questions that follow shall further define the path of the study:

What is meant by touch sensibility and how does it actually affect the function of the hand?

How do sense receptors impose on the functionality of the hand and the fingers as connected to the explanation of the two-point discrimination?

What particular elements of touch sensibility and stimulant receptors actually affect the proper functions of the hands and the fingers and how do these elements help in the process of finding the consistent procedures by which issues of functionality could actually be defined and resolved?

Significance of the Issue

The functionality of the human hand depends on the capability of the fingers to properly move and receive proper stimulation from the utilization of touch sensibility. Through the recognition of the two point discrimination, this function could be better identified, thus pushing for the more effective understanding of what finger function is all about and how important it is for the human individual. Likely, it could not be denied that the most important part of this study is providing proper understanding on how the finger functions thus creating more comprehensive ways of responding to several issues of hand and finger injuries that require sensory stimulation to re-enhance the functionality of the said part of the human body.

Benefits of the Study

The list that follows better present the essential benefits that this study intends to provide to the stakeholders of the research:

Establishing proper understanding of the role of the two-point discrimination in identifying the proper functioning system of the hand and the fingers

Being able to identify the role of touch sensibility in finding the most considerable approach used to identify the functionality of the hands and fingers

Noting the efficient explanation capable of providing the most considerable support to finding effective solutions to problems involving sensory issues causing malfunction in hands and fingers.

Objectives of the Study

To make a definite explanation of what two-point discrimination in the hand and fingers is all about.

To consider the importance of two-point discrimination in identifying functionality of the hands and fingers and practically making a good indication on how this functionality could be better enhanced on the cases of those who are having dysfunctional medical issues when it comes to their hands and their fingers.

Methodology

Based on an experimental approach, this study shall try to investigate on the matters that have already been proven by the past researchers of the same field. It could be observed that somehow, the experiment is expected to provide a better essence of the truth that defines the role of touch sensibility and the connection that it has with the two-point discrimination in the hands and the fingers. With the results from the participants who are to be asked to take part in the experiment, an understanding of the actual effects of sensory detection through the two-point discrimination theory that explains that stimulation of sensation found in the hands and the fingers.

Research Structure

The introductory part as noted in this section is basically considered as part of the research that considers that primary presentation of what the research is going to be about. This section practically gives a good overview to the readers of what the study is practically focused upon. In the later part of the research (chapter 2) shall give a good presentation of the evidential collection of the research materials that basically define the exceptional understanding of what two-point discrimination is all about and how it directly affects hand and finger functions, it is expected that through this section, a brief introduction of what is supposed to be expected of the experimentation that is to be handled in the research shall be better given view. These evidences shall be given actual proof through the next section [chapter three]; the methodology section. Through this, the explanation of the procedures taken into consideration for the response towards the statement of the problems insisted within the introductory section of the research. The fourth chapter shall be the results and analysis section which gives the proper understanding of what the results of the methods applied actually insists in connection with the issue being investigated upon. Towards the end of the research’s presentation, the discussion section shall try to present the collaborative indication of the connection of the literature review with that of the results garnered through the methodology section undergone within this study. The finalization of the research shall practically be given a prelude by the summary section which is to be finally ended within the conclusion section. Further recommendations for bettering the future studies could actually be presented in later researches proposals regarding the actual considerations applied when discussing matters about receptor response to sensory stimulants in connection with the two-point discrimination in the hand and finger theory understanding that corresponds to the message transmission between the brain and the hand-finger reception that promotes better function.

Literature Review

2.1 Understanding Skin Sensory

To note, there are actually different kinds of distinct sensations that the body receives. It could not be denied that somehow, these particular sensory types include tapping, vibration, pressure, pain, heat and coolness. These particular sensations become possible due to the existence of skin sensory receptors or cells that serve as touch sensibilities that provide the skin the proper function of responding to particular thermal, mechanical and chemical stimulus that basically intends to make a definite effect on how the skin cells are actually able to send the right message to the brain and have the brain respond accordingly to the sensory message that has been sent.

The central nervous system (CNS) is the primary response system that provides the real essence of the cell receptors and the role that they are taking in the approach of providing the brain and the hand-finger system an effective connection that establishes collective functioning. It could be observed though that somehow, the reaction that the receptors provide the brain with is not only dependent on the feel or the sensory message itself but also on the past experiential basis that the brain basically responds to in connection with the sent sensations by the hand and the fingers. This could be better envisioned through the image presented below.

Within this diagram, it could be observed that the connection between the receptor and the cell body is directly managed by the central nervous system which practically invokes the push for the body to respond to the message sent by the receptors found in the human skin. This is in direct relation to that of the function of the hands and the fingers. It could be observed that this sensory evidential proof naturally imposes an effective process of showing that the brain responds to the receptors’ message even without the existence of visual input. To prove this, the study of Chassard and his colleagues entitled Two-point discrimination tests versus functional sensory recovery in both median and ulnar nerve complete transections basically insists that the results of their method for research presented a rather considerable approach in pointing out that existence of strong receptor capabilities of blindfolded participants who had some certain dysfunctions when it comes to the role taken into consideration by their fingers and their hands. Although there were some certain measures of failures in the test because of the dysfunction, it could not be denied that the process of responding to the process was not that hard to comprehend with as the receptors, although weak were still able to carry out the message towards the cell body towards the brain and send back response for accurate reaction (793).

The message from the receptors travel through the cell body in the form of kinetically charged electrical signals that are carried through neuronal extensions noted as the axons. Upon reaching the brain, the touch sensory is interpreted through the tactile sense. The deciphering of the message occurs as the separation of the different elements present in it naturally recreates its signals into the brain. The elements considered are that of the surface, the temperature, the shape and the actual feel of the object or the received sensation. It is through this that the brain responds accordingly to what has been felt. Basically, this reception of sensation offers a good picture of how our body connects with the outside world. In terms of our hand and our fingers, the process by which they react depends on their capability to allow sensational messages pass through and be sent towards the brain for garnering accurate response.

2.2 Types of Tactile Receptors that Respond to Different Information

The tactile receptors are explained as the nerve endings that respond to the different stimuli that are presented as sensory messages. In this regard, the pace by which the brain receives the message actually depends within the capability of the tactile receptors to send in the sense of the message. It could be considered that somehow this is where the two-point discrimination comes in. The rapidly adapting tactile sensory basically notes the occurrence of a fast paced response of the brain towards the message of the receptors. However, having a fast response should be balanced properly with that of the slow adapting stimulus which makes it much possible for the brain to separate the elements of the message of the received sensory in more effective manner. This could be better explained through the diagram of pace measurement presented herein.

The diagram herein makes this particular diagram shows a differential understanding on how the rapidly adapting neural activity actually responds in balance with the slowly adapting neural activity. It could be observed that it is only through this particular balance that the two-point discrimination in the sensory capabilities of the hand and the fingers are actually identified.

2.3 Sensory input and the Brain

2.4 Understanding what Two Point Discrimination is about

2.5 The Two Point Discrimination in Hand and Fingers

2.6 Cases and Evidences

2.7 Summary