#tactile perception

• Allocheiria — A graphic and clinical variant of the term 'allocheiria'; it represents a neurological disorder of somatic sensitivity where a patient localizes a tactile, thermal, or painful stimulus on the opposite side of where it was actually applied. This structural phenomenon reflects a severe dysfunction in signal transmission and processing within the secondary somatosensory cortex or the parietal lobe, often associated with hemispatial neglect.
• Alloesthesia — A neurological disorder of sensory perception where a stimulus applied to a specific part of the body is structurally felt on the opposite side or in a completely different location than the actual one; this cortical or radicular dysfunction affects the correct localization of tactile or painful sensations.
• Anomalesia — A rare sensory perception disorder characterized by a partial inability or congenital weakening of tactile and thermal sensitivity, often manifested through difficulties in correctly locating or differentiating physical stimuli applied to the skin. This structural deficit in innervation or central somatosensory processing is studied in clinical neurology in close connection with focal cortical lesions in the parietal lobe.