SENSATION
Sensation. This process involves the sensory organs detecting stimuli from the environment and converting them into neural signals that can be processed by the brain.
The law of specific nerve energies, first proposed by Johannes Peter Müller in 1835, is that the nature of perception is defined by the pathway over which the sensory information is carried. Hence, the origin of the sensation is not important. Therefore the differences in sensory quality, the difference between seeing and hearing, between hearing and touch, and so on - are not caused by differences in the stimuli themselves but by the different nervous structures that these stimuli excite. For example, pressing on the eye elicits sensations of flashes of light because the neurons in the retina send a signal to the occipital lobe. Despite the sensory input's being mechanical, the experience is visual.
The brain is the central hub of the nervous system, responsible for processing and interpreting sensory information, making decisions, and sending out commands to the rest of the body through the spinal cord. It controls various functions such as movement, thinking, and emotions by sending and receiving electrical signals between neurons. Overall, the brain plays a crucial role in coordinating all activities of the nervous system.
Comparative: more nervous Superlative: most nervous
The comparative form of "nervous" is "more nervous."
Sensation is defined as the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment.
Sensation. This process involves the sensory organs detecting stimuli from the environment and converting them into neural signals that can be processed by the brain.
The nervous system works with the endocrine system to create a response to a stimulus. The nervous system detects the stimulus and sends signals to the endocrine system, which releases hormones that help regulate the body's response to the stimulus. Together, these systems coordinate a response to the stimulus.
The nervous system sends signals to the proper areas of the body in response to a stimulus. Sensory receptors detect the stimulus and send the information as electrical impulses through neurons to the brain, which then processes the information and coordinates a response.
In very general terms the functions are Sensation via the afferent fibres and Control (of movements) via the efferent fibres.
A stimulus is a signal that triggers a response in the body. When a stimulus is detected by sensory receptors, it sends signals to the nervous system. The nervous system then processes this information and coordinates a response, which can involve actions such as movement, secretion of hormones, or changes in heart rate.
The olfactory epithelium, located in the upper part of the nasal cavity, is responsible for receiving the stimulus for smell. It contains specialized sensory neurons that detect odor molecules in the air.
The detection and encoding of stimulus energies by the nervous system is called sensation. Principles first recognized by Gestalt psychologists indicating that the brain imposes order on incoming stimuli are called perceptual grouping rules.
Fundamentally the system involved in a reaction to a stimuli is the nervous system.
nervous system
The stimulus that triggers responses in the nervous system is typically a sensory input, such as touch, sound, light, or chemicals, that is detected by sensory receptors in the body. This information is then transmitted to the brain and spinal cord, where it is processed and elicits a response from the nervous system.
direct control of the nervous system