Fixation Line

Introduction

The Fixation Line (LF) is a visual cue used in psychology and neuroscience to study attention and movement control. It is a straight line drawn through the center of the brain using an MRI scan. Typically performed in the orbitofrontal cortex. It has been experimentally proven that LF neglect may be associated with attention deficits and disturbances in motor control. In this article we will look at the history of LF, its role in science and medicine, as well as the practical use of LF in diagnosis, treatment and rehabilitation.

History of the Fixation Line

The term Fixation Line was coined in 1996 by scientist James Coens of Harvard University. He was inspired by the observation that people cannot focus on the center of their visual field, creating a circle in the center. This was based on the assumption that people's attention tends to be fixed at the periphery of the visual field. LF has been the subject of a number of studies because its implementation itself does not require the use of invasive methods and is relatively simple. In a short time, LF has found wide application in research and practice in various fields of medicine.

Using a Fixation Line

The linear fixation method is an effective and inexpensive way to study human movement control. At certain intervals, the LF is held in one position, held by the patient for a few seconds, then removed, after which the patient repeats the examination in another part of the scene or test. The purpose of LF is to analyze changes over time, such as increased attention while holding the gaze at a certain point, increased sensitivity, and so on. Thus, LF is a useful tool for studying psychological phenomena in movement, such as muscle rigidity and motor perseveration, as well as for studying neurological disorders.

The role of the fixation line in therapy

LF can be used not only for diagnosis, but also for treatment