Attention is a cognitive process that enables individuals to selectively focus on specific stimuli or information while ignoring others. It involves the allocation of mental resources to sensory inputs, thoughts, or tasks, allowing individuals to perceive, process, and respond to relevant information in their environment. Attention plays a crucial role in various cognitive functions, including perception, learning, memory, and decision-making, shaping how we perceive and interact with the world around us.

Attention can be influenced by factors such as arousal, motivation, novelty, and task demands, and it operates across multiple dimensions, including selective attention, sustained attention, divided attention, and executive attention.

Dysfunction in attentional processes can lead to difficulties in concentration, distractibility, and impaired cognitive performance. Overall, attention is a fundamental cognitive mechanism that underlies our ability to focus, filter, and prioritize information, facilitating efficient information processing and adaptive behavior. 

Attention in the context of cognitive psychology refers to the behavioral and cognitive process of selectively concentrating on a discrete aspect of information, whether deemed subjective or objective, while ignoring other perceivable information. It is a crucial mechanism in perception, as it involves a brain process that enhances some signals at the expense of others.

Here is a key citation from the academic literature that delves into the mechanisms and theories of attention:

This seminal paper by Posner and Petersen outlines the neural bases of the attention system in humans, providing a detailed review of attention mechanisms and their implications for cognitive neuroscience.

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