Is pain sensation or perception?
Pain can be separated into an early perception of sharp pain and a later sensation that is described as having a duller, burning quality. (A) First and second pain, as these sensations are called, are carried by different axons, as can be shown by (B) (more…)
What is first pain and second pain?
It is a unique perceptual phenomenon that single painful stimuli yield two successive and qualitatively distinct sensations referred to as first and second pain sensation (1–4). First pain is brief, pricking, and well localized, whereas second pain is longer-lasting, burning, and less well localized.
What is modulation pain?
Pain modulation refers to the process by which the body alters a pain signal as it is transmitted along the pain pathway and explains, at least in part, why individual responses to the same painful stimulus sometimes differ.
What increases perception of pain?
The perception of, expression of, and reaction to pain are influenced by genetic, developmental, familial, psychological, social and cultural variables. Psychological factors, such as the situational and emotional factors that exist when we experience pain, can profoundly alter the strength of these perceptions.
What is the pain pathway?
The thalamus is the destination of spinothalamic tract—the sensory pathway responsible for processing pain, temperature, and crude touch. The brainstem reticular formation, which forms a diffuse, central core within the brainstem is the destination of the spinoreticular tract.
What are 1st 2nd and 3rd order neurons?
First Order Neurons: Detect a stimulus and transmits a signal to the spinal cord. Second Order Neurons: Continues as far as the gateway-the thalamus- at the upper end of the brainstem. Third Order Neurons: Carries the signal the rest of the way to the sensory region of the cerebral cortex.
What does Somatosensation mean?
The term somatosensation (or somatosensory senses) is an all encompassing term which includes the sub-categories of mechanoreception (vibration, pressure, discriminatory touch), thermoreception (temperature), nociception (pain), equilibrioception (balance) and proprioception (sense of positioning and movement).[1] The …