Covert Attention: Explanation
The question describes a type of attention shift that occurs without moving the eyes. This phenomenon is commonly experienced when you notice something peripherally, often referred to as "seeing something out of the corner of your eye."
Defining Attention Types
Let's look at the options:
- Covert attention: This is the ability to direct attention to a location or object without shifting the eyes or head. It allows processing of information from the attended area, even if it's not in the direct line of sight.
- Overt attention: This involves physically moving the eyes or head to focus on a stimulus. It's attention accompanied by a physical movement of the sensory organ (eyes).
- Divided attention: This refers to the ability to process two or more different stimuli or tasks simultaneously.
- Span of attention: This relates to the amount of information a person can attend to at one time.
Identifying the Correct Attention Type
The key phrase in the question is "shifted without moving the eyes." This precisely matches the definition of covert attention. Overt attention requires eye movement, while divided attention and span of attention describe different aspects of attentional capacity, not the mechanism of shifting focus without eye movement.
Therefore, the attention shifted without moving the eyes is covert attention.
Important Questions from Nervous system
Which one of the following synaptic vesicle proteins is involved in tethering of the vesicle to the cytoskeletal system in the nerve terminus?
In the nervous system, the action potential is generated at the axon hillock in physiological conditions and it is conducted to the terminal end of axon. The location specific origin of action potential and its direction-specific conduction are explained by a researcher in the following proposed statements:
A. The membrane of axon hillock has highest threshold for the generation of action potential
B. The membrane of axon hillock contains large numbers of voltage-gated Na+ channels and that makes it more excitable
C. The propagating action potential in the middle of the axon cannot generate another action potential in the direction of cell body since a large fraction of voltage-gated Na+ channels in the preceding portion is voltage inactivated
D. As the number of voltage-gated Na+ channels is less in the preceding portion of axonal membrane, the propagating action potential in the middle of the axon cannot generate another action potential in the direction of cell body.
Which one of the following combinations represents both correct explanations?
Which one of the following is NOT released by sympathetic preganglionic neurons?
The time taken by synaptic vesicles to travel from the soma of a motor neuron in the spinal cord to its neuromuscular junction in a person’s foot by fast axon transport is about‐
The release of which neurotransmitter from the rods of retina is reduced when light strikes its outer segment?
