Two-Point Discrimination Paper

Think of Cairns and you immediately picture beaches and sunshine. What better to add to the mix than nudity? In Cairns, the unofficial nude beach is Buchan Point Beach or colloquially, Buchan's, just north of Buchan Point, and at the point where a driver first glimpses a breath taking vista of beaches stretching all the way north to Port Douglas.

Touch is the first sense we experience in the womb and may also be the last we experience before death. To understand the consequences of losing the sense of touch we must first understand its benefits. Touch is an important element of how we understand and relate to our world. Touch can convey personal feeling towards one another or it can convey danger such as heat or sharp surfaces. The inability to feel sensations on the ski impacts many different situations and can potentially have dangerous repercussions. Our ability to survive is not generally dependent on our sense of smell or our sense of taste. However, if one does not possess the sense of touch, it can directly imperil our very existence.

The procedure of the project is to determine the ability to differentiate the touch of the calipers or an esthesiometer and a metric ruler. The project is to determine the two-point threshold which is the measurement, the smallest distance at which two points of contact can be felt. If we can feel the sensation of both picks from a short distance to a wider distance. To know when we can feel both and without looking. Turning away and getting poked when to say when you feel one touch or two touches. The areas that we did to do the test was the forearm which has thin skin, thumb and the index which has thick skin. The ability to distinguish the two points from one area to another area of your body. The ability to determine which portion of the skin has been touched is called tactile localization. The receptors must be densely packed in a sensitive area, so that two points very close together activate different receptors.

The word Haptic is derived from the Greek word “haptesthai”. Haptic technology or haptics is tactile feedback that takes advantage of user’s sense of touch by applying forces, vibration and motion to the user [1]. The definition of haptics includes all aspects of information acquisition and object manipulation through touch by humans, machines, or a combination of the both and the environments can be real, virtual or tele-operated. Now a days the term "haptic interface" has been used by researchers to describe devices that measure the motion and stimulate the sensory capabilities of our hands. There is a long history in the

In the case of Derek Steen, who is suffering from Phantom Limb Syndrome, Dr. Ramachandran evaluated the levels of feelings on both sides of the patient’s body by touching certain parts of the patient with a q-tip. When the Dr. stroked the q-tip across the left side of the patients

The purpose of this lab was to determine which regions of the body have the most touch receptors and in turn which regions of the body have the greatest representation on the somatosensory cortex map. The somatosensory cortex map is located in the parietal lobe and processes tactile information (D. Purves, Augustine, & Fitzpatrick, 2001). According to Neuroscience 2nd edition, the increased representation of specific body areas in somatosensory cortex map is a function of evolution (D. Purves, Augustine, & Fitzpatrick, 2001). To determine the regions of the body with the greatest representation on the somatosensory cortex map a two point discrimination test was selected. This test has been used to measure tactile spatial acuity

- Distinguished by hypersensitivity to touch (allodynia) and "trigger points" that promote worsening of pain when manipulated

Assess sensory awareness (e.g. cold from hot, dull from sharp, body part and joint sensation).

Review, describing Hollinger and Buschmann (1993) as the authors of the “Perception of Touch Instrument”, which considers study measures for analyzing various forms of touch with direct participant observations and data collecting through surveys for data analysis. Consistently, with and characterizing “therapeutic touch” as a form of nonverbal communication, which incorporates specific tactile movements, to induce a calming physical affect (Routasalo 1999, p. 846). Moreover, gentle human touch provides a sense of comfort, kindness, and caring in a non- intrusive fashion, which is not limited to patients or nurses, but is a universal unspoken language utilizing

Then I answered the touch part of the challenge. At first, I believed the mouth has many more touch receptors than one’s hand does. However, I was proved incorrect by this test. Apparently, one’s fingertips have more sensitive touch receptors than many other parts of your body. These touch receptors react to pressure, and they are responsible for telling you when your plate is hot when you take it out of the microwave, or the feeling you get when you touch a cold window during the winter.

sensory receptors in the skin of the area affected kick in to send a message via the sensory nerves

The article, Understanding Ayres Sensory Integration states, “ Sensory Processing is a generic term used to describe the way in which sensation is detected, transduced, and transmitted through the nervous system” (Smith, Mailloux, Miller-Kuhaneck, & Glennon, 2007). Ayres spent a majority of her career working with patients one on one, and the sensory intregration theory stemmed from her work with children living with Cerebral Palsy, and learning disorders (Brittanca, 2015). Sensory integration disorder has two different components. First, a person may over respond to a stimulus, which can cause extreme discomfort from a simple object, such as a tag on the back of a shirt. In contrast, a person with sensory integration disorder may under respond to a stimulus. An under response in the nervous system is very dangerous because, it can cause a person to not feel pain even in severe hot, or cold temperatures. From her research, Aryres constructed Sensory Integration Therapy. Britannca states, “sensory intergration therapy, stresses detailed evaluation and understanding of each child’s unique sensory style and challenged,

Sensory processing disorder (SPD) is a term used to describe the way the nervous system receives and interprets senses, which in turn translates to appropriate behavioral or motor responses. An individual with SPD has difficulties organizing sensory responses and transitioning these responses appropriately. By not receiving appropriate sensory information a person with SPD may have difficulties performing daily tasks. As with other disorders sensory processing disorder has a wide range of severity within a spectrum. Although many may have occasional difficulties processing sensory information, individuals with SPD are chronic that create continual obstacles of various daily tasks. In fact, research suggests that over 90% of

pressure, contact and pain. Sensation is detected through the nerve endings in the dermis which

The human body may not be equally receptive to touch, and sensitivity appears to vary from one part of the body to the other. The purpose of this lab is to determine which part of the body is the most sensitive in distinguishing separate pressure points. The skin which is thought to be more sensitive will recognize separate pressure points at a shorter distance. Skin unable to make out separate pressure points until a larger distance, is thought to be less sensitive. The sites of the body which will be tested are the face, back of neck, back of hand, palm of hand, and fingertip. If the fingertip is the most sensitive, then the fingertip will have the least two-point threshold. “Human fingers can identify textures whose ridges