While sensation is the process of sensory input arriving at the cerebral cortex, perception is the brain making sense of this input. Perception is an experience that is unique to each individual, whereas the initial input of sensation is usually the same for all people.Continue Reading
Although it is difficult to absolutely define the relationship between sensation and perception, it does have the following characteristics:
Sensation can be input from the outside worldSensations arise when something outside the body stimulates a reaction. For example, if someone walks past a restaurant, its aromas stimulate the olfactory senses. This is a sensation.
Some sensations come from the body itselfIn some cases, sensations arise inside the body. For example, when something disrupts the digestive system's normal functioning, it is likely to send pain sensations to the brain.
Perception is how the brain interprets the sensationOnce the brain receives incoming information, perception begins. Each person may therefore make sense of sensations in different ways. For example, while some people love the smell of bacon cooking, others do not. Therefore, some perceive it as pleasurable, whereas others see it as repugnant. With regards to pain, perceptions can vary in terms of how powerful the person perceives the pain to be. Learn more about Nerves
According to Dartmouth, the cerebral cortex is the outer layer of the brain and is responsible for numerous functions including sensation, language, creativity, motor processes, memory, abstraction, emotion, attention and judgement. The cerebral cortex is generally associated with the higher-level functions of the brain, and in animals with large brains, it is wrinkled as to provide more surface area for grey matter to flourish.Full Answer >
Sensory neurons receive impulses and carry messages from the sense organs to the brain. Once the brain receives this information, it sends new information to the motor nerves to tell them what actions to perform.Full Answer >
The nervous system functions to process input from sensory receptors, transfer and interpret impulses and to control the functions of body's muscles and organs. The nervous system is comprised of nerves made up of specialized cells known as neurons.Full Answer >
The olfactory lobe, or olfactory bulb, is the structure within the brain that receives neural input from the nasal cavity, thus processing the sense of smell, according to Encyclopedia Britannica. The nasal cavity's smell receptors are connected to the olfactory bulb through axons.Full Answer >