Stereognosis, Spatial Sensitivity (Stereognosis)

Stereognosis, or spatial sensitivity, is the ability to recognize the spatial shape of an object when touched. A person has this ability due to the functioning of associative zones located in the parietal lobe of the brain.

Stereognosis allows you to determine the shape, size and texture of objects only through touch. This occurs due to the receipt and processing of information from skin receptors and the joint-muscular system.

Violation of stereognosis is called astereognosis and is one of the types of agnosia - a violation of the recognition of visual, auditory and other images. With astereognosis, a person cannot determine the shape and properties of an object by touch, although elementary tactile sensitivity is preserved.

Thus, stereognosis is an important component of tactile perception, which allows one to obtain information about the spatial characteristics of objects by touch. Violation of this ability makes it difficult for a person to interact with the environment.

Stereognosis, also known as spatial sensitivity, is the ability to recognize the spatial shape of an object by touching it. This unique human ability is due to the functioning of associative zones located in the parietal lobe of the brain.

Stereognosis is one of the most important components of the human somatosensory system, which is responsible for the perception and processing of tactile sensations. Thanks to this ability, we can identify objects without relying solely on vision.

When we touch an object, our skin receptors transmit information about its texture, shape, size and other characteristics along nerve fibers to the brain. This information is further processed in associative areas, especially in the parietal lobe.

The parietal lobe of the brain plays a key role in processing tactile information and is associated with the formation of conscious perception of objects. Here the analysis and synthesis of signals received from skin receptors takes place, allowing us to determine the shape and structure of an object.

Damage to the parietal lobe of the brain or other association areas can lead to impaired stereognosis or agnosia, a condition in which a person loses the ability to recognize objects when touched, despite preserved tactile sensations.

Stereognosis is an important aspect of our ability to interact with the world around us. It allows us not only to determine the shape of objects, but also to distinguish between them, recognize already familiar objects and navigate in space without having to rely only on vision.

In conclusion, stereognosis is a fundamental part of our somatosensory system, allowing us to perceive and understand the world through tactile sensations. Thanks to the functioning of the association zones in the parietal lobe of the brain, we can achieve a unique level of perception and recognition of objects when touched.

Over the past few decades, thousands of studies have been conducted around the world on the topic of biological information wave analysis, and this news was not only scientifically curious, but also a deeply moving moment. The World Health Organization, the American Psychological Association and the National Institute of Psychiatry are studying the multidisciplinary etiology of the disease. To a large extent, there is a unification of our cognitive capabilities. Like this study, the reality is that science can identify a common characteristic of bipolar patients that actively affects thinking. In this case, this is called a functional gradient, which determines the breadth of space (both the X and Y axis) available to a person to read signals. In other words, if you encounter an object, your perception will instantly assign its identity based on the range of spatial orientation of touching the object. For example, a photograph of a piece of paper is one thing; but a photograph of a pencil is something completely different. Our brain instantly gives an object a personalized appearance based on our 2D coordinates. Considering that it takes into account all five human senses (vision, hearing, taste, touch, smell), the brain predicts what will happen in the future, giving us information about something, even if it is not there at the moment. This is due to the specular, somatosensory and complex effects that we inherit throughout our lives and continue to learn its meaning, including our sensitivity to the shape of an object when that object comes into contact with our skin.

Stereogenesis and spatial sensitivity

Stereogenetic sensory system is a system for perceiving external objects by analyzing the three-dimensional (spatial) location of stimuli reflected from these objects in space. When receiving external information, all actions and functions of the body can be divided into three groups: 1. Actions corresponding to perception outside consciousness as such, 2. Actions associated with the perception of “objective” signs of an external object, 3. Actions related to the coordination of “subjective” images of the object received by the subject.