Video Experimental Relacionado
Updated: Jul 26, 2026

05:15
The (Spatial) Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition
Published on: February 19, 2018
Dejó la negligencia por el espacio cercano pero no lejano en el hombre
1University Department of Clinical Neurology, Radcliffe Infirmary, Oxford, UK.
Nature
|April 11, 1991
Resumen
El procesamiento visual del cerebro humano puede implicar distintos mapas espaciales para entornos cercanos y lejanos. Un paciente con un accidente cerebrovascular en el hemisferio derecho mostró negligencia espacial para el espacio cercano pero no el espacio lejano, apoyando esta teoría.
Área de la Ciencia:
- La neurociencia es la neurociencia.
- Psicología Cognitiva Psicología cognitiva.
- La percepción visual es la percepción visual.
Sus antecedentes:
- El sistema visual del cerebro humano puede contener mapas espaciales especializados para el espacio periférico (cercano) y extrapersonal ( lejano).
- Investigaciones anteriores en monos sugirieron una división entre las distancias de "agarrar" y "caminar", o "alcanzar" frente a los campos de "apuntar / lanzar".
- La evidencia de estudios en monos indicó efectos disociables de lesiones en áreas frontales específicas en la negligencia espacial en el espacio cercano versus lejano.
Videos de Conceptos Relacionados
Space-Time Curvature and the General Theory of Relativity
In 1905, Albert Einstein published his special theory of relativity. According to this theory, no matter in the universe can attain a speed greater than the speed of light in a vacuum, which thus serves as the speed limit of the universe.
This has been verified in many experiments. However, space and time are no longer absolute. Two observers moving relative to one another do not agree on the length of objects or the passage of time. The mechanics of objects based on Newton's laws of motion,...
This has been verified in many experiments. However, space and time are no longer absolute. Two observers moving relative to one another do not agree on the length of objects or the passage of time. The mechanics of objects based on Newton's laws of motion,...
Directional Terms
Directional terms are essential for describing the relative locations of different body structures. For instance, an anatomist might describe one band of tissue as "inferior to" another, or a physician might describe a tumor as "superficial to" a deeper body structure. These terms often use comparative terms in pairs to trace out the relative locations of one body part to another or descriptions of body tissues like the deeper ones from superficially present with reference to the body's upright...
Focusing of Light in the Eye
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
Lateralization
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
Visual Agnosia
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round end"...
Distance Problem
When an object's velocity changes over time, the total distance traveled can be determined by summing small displacement intervals over short increments. This approach approximates the true distance through numerical summation and the use of integral calculus. An estimate of the total displacement can be obtained by measuring velocity at regular intervals and multiplying each value by the corresponding time step.If a runner accelerates over the first three seconds of a race, speed measurements...

