An overview of research on selective attention

As a result of this limited capacity to process sensory information, there was believed to be a filter that would prevent overload by reducing the amount of information passed on for processing. Instead, attenuation will occur during the identification of words and meaning, and this is where the capacity to handle information can be scarce.

Children with ASD share many common deficits to children diagnosed with SLI, including receptive language and auditory processing deficits. Studies have had participants fixate their eyes on a central point and measured brain activity as stimuli were presented outside the visual fixation point. Participants were asked to attend to, or disregard specific stimuli presented.

The electric shocks were presented at very low intensity, so low that the participants did not know when the shock occurred.

For the research, psychologists Dr. Not surprisingly, considerable research has been conducted in psychology on the nature and improvement of attentional processes. Participants heard words from the unattended ear more regularly if they were high in contextual relevance to the attended message.

Before and after training, children completed standardized language assessments and an event-related brain potential measure of selective auditory attention. Relevance to mental illness[ edit ] Studies have shown that there is a high probability that those who suffer from low attentional control also experience other mental conditions.

These mechanisms help with the regulation of goals, behavior, and outside distractions, which are all important for effective learning.

After training, the children with dyslexia also showed increased metabolic activity in the left temporoparietal cortex and left inferior frontal gyrus, brain regions associated with phonological processing, bringing brain activation in these regions closer to that seen in typical readers.

Visual attention operates mainly on three different representations: They proposed all stimuli get processed in full, with the crucial difference being a filter placed later in the information processing routine, just before the entrance into working memory. Subjective importance[ edit ] Words that possess subjective importance e.

Dalton said, is that even seemingly obvious distractions can be missed when attention is focused elsewhere--and that this is true whether the distraction is visual or aural in nature. The shifting function is used to allocate attention to the stimuli that are most relevant to the task.

Prominent authors who take a modular approach to cognitive development include Jerry FodorElizabeth Spelke and Steven Pinker. The relationship between anxiety, concentration and skilled performance that it is critical to understand to work effectively in performance situations was examined in relation to the most recent theoretical developments.

According to Broadbent, any information not being attended to would be filtered out, and should be processed only insofar as the physical qualities necessitated by the filter. Polly Dalton of the Royal Holloway-University of London asked study participants to listen to two recorded conversations --one between two men and another between two women.

The lower this threshold, the more easily and likely an input is to be perceived, even after undergoing attenuation. Amongst authors who take neuroconstructivist approaches to development, particular importance has been attached to attentional control, since it is thought to be a domain-general process that may influence the subsequent acquisition of other skills in other areas.

Then, I reviewed the strengths and weaknesses of three cognitive metaphors of attention; the filter approach, the spotlight theory and the capacity or resource model. Now a new study shows that this same phenomenon occurs with hearing.Attentional control refers to an individual's capacity to choose what they pay attention to and what they ignore.

General overview of research. Sources of attention in our brain create a system of three networks: alertness (maintaining awareness), orientation.

Selective Attention

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Attentional control

CQ Press Your definitive resource. In line with the ERP research described above, this research implies that selective attention can have effects on relatively early stages of auditory information processing. This assertion is further strengthened by studies using single-cell recording techniques in nonhuman primates, in which researchers have been able to measure the responses.

Selective attention is a cognitive process in which a person attends to one or a few sensory inputs while ignoring the other ones. Selective attention can be likened to the manner by which a bottleneck restricts the flow rate of a fluid.

Video: Selective Attention: Definition & Examples This lesson describes the phenomenon of selective attention, something you employ in your everyday interactions that helps you decide what gets. Jun 20,  · Editor's Note: Don't read the text below until you watch the video above and take the "selective attention" test -- it's harder than you thin.

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An overview of research on selective attention
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