Perception: Difference between revisions
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#* Ruffini's Endings: Perceives sustained pressure and skin stretch, helping to maintain a firm grip on objects | #* Ruffini's Endings: Perceives sustained pressure and skin stretch, helping to maintain a firm grip on objects | ||
At different rates of stimulation, each of the receptor types adapts continuously.<ref>Bayram-Weston, Zubeyde & Knight, John & Andrade, Maria. (2023). The senses 4: touch – physiology of the sensation and perception of touch. Nursing Times. 119. online. <nowiki>https://www.nursingtimes.net/neurology/the-senses-4-touch-physiology-of-the-sensation-and-perception-of-touch-13-12-2022/</nowiki></ref> Likewise, it converts physical energy (pressure, vibration, temperature) into electrical impulses, which are sent along nerve fibres towards the spinal cord, ensuring instantaneous awareness of haptic changes.<ref>Blumenrath, Sandra . “The Neuroscience of Touch and Pain.” ''Www.brainfacts.org'', 3 Feb. 2020, www.brainfacts.org/thinking-sensing-and-behaving/touch/2020/the-neuroscience-of-touch-and-pain-013020.</ref> The electrical impulses are either transmitted through slowly adapting fibres, firing with persistent pressure, or rapidly adapting fibers. Once triggered, these signals travel to the somatosensory cortex, containing topographic maps of the skin, which represent different body parts.<ref name=":02" /> | At different rates of stimulation, each of the receptor types adapts continuously.<ref>Bayram-Weston, Zubeyde & Knight, John & Andrade, Maria. (2023). The senses 4: touch – physiology of the sensation and perception of touch. Nursing Times. 119. online. <nowiki>https://www.nursingtimes.net/neurology/the-senses-4-touch-physiology-of-the-sensation-and-perception-of-touch-13-12-2022/</nowiki></ref> Likewise, it converts physical energy (pressure, vibration, temperature) into electrical impulses, which are sent along nerve fibres towards the spinal cord, ensuring instantaneous awareness of haptic changes.<ref>Blumenrath, Sandra . “The Neuroscience of Touch and Pain.” ''Www.brainfacts.org'', 3 Feb. 2020, www.brainfacts.org/thinking-sensing-and-behaving/touch/2020/the-neuroscience-of-touch-and-pain-013020.</ref> The electrical impulses are either transmitted through slowly adapting fibres, firing with persistent pressure, or rapidly adapting fibers. Once triggered, these signals travel to the somatosensory cortex, containing topographic maps of the skin, which represent different body parts.<ref name=":02" /> Furthermore, heating or cooling are detected by skin thermoreceptors influencing our recognition of objects (e.g., metal feels colder than plastic at room temperature). If an object begins to warm up or cool down in the hand, through feedback humans can then indicate material properties such as moisture. This overall process from touching to interpretation follows multiple pathways. First of all, the skin collects input with receptors (touch and vibration). Further, it leads to an awareness of the object's movement in order to judge its weight and orientation, which is defined as kinaesthetic feedback. This refers to the sense of limb movement, where muscles, tendons, and joints work together with inputs to inform the brain. Those informations are then processed at the cortex and other parietal regions. Consequently, the multiple lines of sensory information offer a detailed and adaptive representation of the physical world.<ref name=":02" /> | ||
Furthermore, heating or cooling are detected by skin thermoreceptors influencing our recognition of objects (e.g., metal feels colder than plastic at room temperature). If an object begins to warm up or cool down in the hand, through feedback humans can then indicate material properties such as moisture. This overall process from touching to interpretation follows multiple pathways. First of all, the skin collects input with receptors (touch and vibration). Further, it leads to an awareness of the object's movement in order to judge its weight and orientation, which is defined as kinaesthetic feedback. This refers to the sense of limb movement, where muscles, tendons, and joints work together with inputs to inform the brain. Those informations are then processed at the cortex and other parietal regions. Consequently, the multiple lines of sensory information offer a detailed and adaptive representation of the physical world.<ref name=":02" /> | |||
=== Auditory Perception === | === Auditory Perception === | ||