Themes of Sensory Processing Introduction Humans have five means of sensing information, which are hearing, tasting, smelling, touching, and seeing (Breedlove & Watson, 2013). All incoming information is sensed in a similar way for each of the five modalities. The sensory receptor organs filter the information that we come into contact with by deciding which information to pay attention to and which information to ignore. The event that activates the sensory organ is referred to as a stimulus; hence, feeling a finger on your arm, hearing music, or seeing an object are all referred to as stimuli. Additionally, we have receptor cells within or sensory organs, the receptor cells perceive specific types of simulation and convert the sensed stimuli …show more content…
The sensory systems select information to send to the brain about experienced internal and external events (Breedlove & Watson, 2013). Some of the sensed stimuli are readily detected by some species, but not others. The sensory receptor organs have a role in which they select which sensed information is sent to the brain and which information is disregard. Energy is then transduced at the sensory receptor cites by the production of a receptor potential that triggers action potentials. Information is translated from the receptors into patterns of neural activity later during the coding process. The action potentials vary in frequency and pattern and the specific frequencies and patterns of the action potentials signal how intense the stimulus was that was encountered. The sequence of the levels in the sensory pathways allow for progressively elaborate processing of the information. The information then enters the central nervous system, via either the spinal cord or the brain, and then the information reaches the thalamus of the brain, where the information is processed and communicated to the cortex. In summary, the sensory information first enters the central nervous system via the cranial and peripheral nerves, and then eventual reaches the thalamus prior to being sent on to the primary sensory cortex. The primary sensory cortex passes the information along to the non-primary sensory cortex. Every …show more content…
Throughout the research for this course I have come to believe that the auditory and olfactory sensory processes are the most
These receptors record on a extensive form of sensory modalities including changes in temperature, stress, touch, sound, mild, style, odor, physique and limb actions, and even blood pressure and chemistry. Scientists have recognized for nearly a hundred thirty years that distinct afferent nerve fibers of the peripheral nervous procedure are in contact with specialized non neural receptive buildings which realize and transmit sensory knowledge from the periphery to the Central Nervous System. The non neural receptive structure in conjunction with its afferent nerve fiber is mainly called a
Dendrites, the auditory nerve; the ear (4) the eyes and other sense organs found on the skin. The
1. Differentiate between sensation and perception. Explain the importance of separating these concepts. The differences between sensation and perception is that sensation is the elementary elements that, according to structuralist, combine to create perception. Whereas, perception is the conscious sensory experience (Goldstein, 2014). This student has always looked at sensations as those things in a persons’s environment that one can see, hear, smell, touch, taste, and feel. On the other hand perception is how a person’s brain will interpret what is seen, heard, smelt, felt, or touched.
The components of the nervous system that are involved in the physical sensation is the peripheral nervous system, which is divided into two groups they are, sensory and motor divisions. The sensory impulse moves through the body by stimulating a receptor in the skin, and it goes through the sensory neurons and also travels through the afferent fibers, the spinal cord and also into the brain.
Explain the visual process, including the stimulus input, the structure of the eye, and the transduction of light energy.
The term sensation is used when referencing the process of sensing the environment through taste, touch, sound, smell, and sight (Goldstein, 2014). Moreover, it is the process that occurs once the sensory receptor experiences stimulation, which in turn produces nerve impulses that are sent to the brain to be processed in its raw form, then perception comes into play (Goldstein, 2014). Perception is used to describe the way people interpret these sensations and tries to make sense of everything around them on a daily basis. Perception is the occurrences of the brain
The human brain is capable of perceiving and interpreting information or stimuli received through the sense organs (i.e., eyes, ears, nose, mouth, and skin) (Weiten, 1998). This ability to perceive and interpret stimulus allows the human being to make meaningful sense of the world and environment around them. However, even as the human being is able to perceive and interpret stimuli information through all sense organs, stimuli is most often or primarily interpreted using the visual (eyes) and auditory (ears) sense organs (Anderson, 2009). However, for the purpose of this paper, the visual information process will be examined.
Everything we do is a product of neural communication, whether that be reacting to senses or feeling emotions, it is all due to us having neural communication through millions of neurons passing small electrical signals throughout the body through such pathways as the central nervous system and the peripheral nervous system and passing information to and from the brain. These ‘’neurons’’ are made up of Dendrites which are connected to a cell body, or also known as the soma, these are tree-like feathery filament ‘’message receivers’’ that collect these messages from other neurons it is connected to, neurons are connected through a dendrite to axon terminal connections and pass these ‘’messages’’ through the body as action potentials.
The CNS contains the brain and spinal cord. Its main functions include: processing, integrating, and coordinating sensory information and motor instructions. The sensory data conducts information that is being processed from internal and external conditions the body is experiencing. Motor commands regulate and control peripheral organs (skeletal muscles). The brain functions under memory, emotions, learning, and intelligence. The PNS consist of the neural tissue found outside of the CNS. It functions in sending data to the CNS which motor commands are than carried out to the peripheral tissues/systems. Multiple nerve fibers send sensory data and motor commands in the PNS. The nerves that assist with transmitting data include the cranial nerves and spinal nerve. However, the PNS can be divided into afferent (to bring in) and efferent (to bring out) divisions of transferring data. The afferent division functions in bringing in sensory data to the CNS. Sensory structures are receptors that detect internal/external environmental change and adjusting accordingly. The efferent division functions in carrying out motor commands from the CNS to glands, muscles, and adipose tissue. The efferent division contains somatic
How information from outside world will be transformed to the brain? Receptors act as interface between external world and the brain. One type of receptors used in our bodies is tactile receptors. Tactile receptors have stretch-gated ions that will open by deformation of the skin and cause generation of a signal (tactile receptor activation). Receptors are located in receptive fields that are defined as an area to which a neuron responds. Skin has four types of tactile mechanoreceptors: Merkel Cells (Corpuscle), Meisnner’s corpuscle, Pacinian corpuscle, Ruffini corpuscle. Receptors are innervated by afferents. There are four types of mechanoreceptive afferent: Slowly Adapting Type-I, SAI (Merkel cell, static indentation), Slowly Adapting