Attention Deficit Disorder Delays Word Processing In Noisy Background

Attention-Deficit Hyperactivity Disorder (ADHD) causes a delay in speech perception and difficulty in understanding the meaning of spoken sentences shows results of the new study at Reichman University’s Baruch Ivcher School of Psychology. Researchers investigated the effects of ADHD on spoken-word processing in noisy conditions. This is the first study to examine “online” (real-time) speech processing in young people with ADHD by using an eye tracker (a device for tracking eye movements).

Students with ADHD may fall behind when the teacher (or university lecturer) is speaking and there are murmurs in the background. Research shows that these students lose precious time as they try to understand the words being spoken, and by the time the next word comes along they are already behind.

The solution is simple, but difficult to implement: silence. Understanding speech is an ability that enables interpersonal communication and is essential for an active life and emotional well-being.

Listen Up! ADHD Slows Spoken-Word Processing in Adverse Listening Conditions

Processing speech in a noisy environment is necessary for everyday conditions and frameworks, such as school, work, and social interactions. The understanding of speech involves the executive functions of inhibition (delaying a response), sustained attention, selective attention, working memory, and planning and executing tasks.

People with ADHD often have difficulty controlling and managing these actions. However, there is almost no research in the literature to date that has studied the relationship between speech and ADHD.

Researchers experimented with subjects from two groups (with and without ADHD) who were asked to perform a task in noisy conditions simulating common situations such as a classroom or a family meal.

The experiment was conducted using an eye tracker device, the only method that enables analysis of processes in real time. The findings showed that the group with ADHD had a delay/slowdown of half a second in performing the task, that is, a delay in processing speech.

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When it comes to speech, half a second is a long time — when you lose a word here and a word there, it adds up, and you may end up missing the context and meaning of the sentence.

Previous studies have found that people with ADHD need an optimal signal-to-noise ratio to properly process and recognize spoken words. Recognition and processing require attention, attention mobilization, inhibition, and working memory capacity.

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People with ADHD have to make more effort to listen in noisy conditions and mobilize more resources than are available to them, which leads to a delay in understanding. This impairment may have serious consequences that will negatively affect the quality of life of those who suffer from it.

The effort people with ADHD have to make to cope with distractions dilutes their cognitive resources, affects their ability to use their working memory effectively, and impairs their perception and processing of speech.



Source-Eurekalert