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American Focus > Blog > Health and Wellness > What happens in the brain when people with schizophrenia hear voices
Health and Wellness

What happens in the brain when people with schizophrenia hear voices

Last updated: October 3, 2024 2:08 pm
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What happens in the brain when people with schizophrenia hear voices
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Schizophrenia is a complex and poorly understood mental illness that affects millions of people worldwide. One of the most common symptoms of schizophrenia is auditory hallucinations, where individuals hear voices and sounds that are not actually present. Research published recently sheds light on the mechanisms behind these hallucinations, providing new insights into the disorder.

According to the study published in PLOS Biology, up to 80% of people with schizophrenia experience auditory hallucinations. Scientists have long theorized that these hallucinations occur when individuals struggle to recognize their own inner speech as self-generated. However, the exact mechanisms behind this phenomenon remained unclear until now.

Lead author Xing Tian, an associate professor of Neural and Cognitive Sciences at NYU Shanghai, explains that previous research on auditory hallucinations in schizophrenia often focused on patients losing their sense of self and agency. The study aimed to uncover the underlying processes that lead to these hallucinations and potentially open up new treatment options beyond traditional medication.

The research highlights the importance of understanding the brain’s functioning in distinguishing between self-generated actions and external stimuli. When a person performs an action, the brain sends signals from the motor cortex to the sensory system to differentiate between internal and external experiences. This process, known as the sense of agency, is essential for normal perception and behavior.

For individuals with schizophrenia, disruptions in this process can lead to a loss of agency and the belief that external forces are controlling their actions. This altered sense of agency contributes to the development of auditory hallucinations. The study found that people with schizophrenia display “broken” and “noisy” motor signals in the brain, which contribute to the experience of hallucinations.

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By using EEG technology to monitor brain activity during speech preparation tasks, the researchers were able to observe the dysregulated motor signals in individuals with schizophrenia, particularly those experiencing auditory hallucinations. These findings provide valuable insights into the neural mechanisms underlying hallucinations in schizophrenia.

The study’s lead author, Xing Tian, suggests that these findings could pave the way for non-pharmacological treatment options for schizophrenia, such as transcranial magnetic stimulation. This noninvasive neuromodulation technique may offer relief for patients who are resistant to traditional drug treatments.

Overall, this research represents a significant step forward in understanding auditory hallucinations in schizophrenia and may lead to more targeted and effective treatments for the disorder. By unraveling the complex mechanisms behind this symptom, scientists hope to improve the quality of life for the millions of people living with schizophrenia worldwide. The world of technology is constantly evolving, with new innovations and advancements being made every day. From artificial intelligence to virtual reality, the possibilities seem endless. One of the most exciting new developments in the tech world is the rise of quantum computing.

Quantum computing is a type of computing that uses quantum-mechanical phenomena, such as superposition and entanglement, to perform operations on data. Unlike classical computers, which use bits to store and process information, quantum computers use quantum bits, or qubits. Qubits can exist in multiple states at once, allowing for much faster and more complex calculations than traditional computers.

The potential applications of quantum computing are vast and varied. From cryptography to drug discovery, quantum computing has the potential to revolutionize many industries. For example, quantum computers could break encryption codes that are currently considered unbreakable, posing both a threat and an opportunity for cybersecurity. In the field of drug discovery, quantum computers could drastically speed up the process of developing new drugs by simulating molecular interactions much faster than traditional computers.

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Despite the immense potential of quantum computing, there are still many challenges to overcome. One of the biggest challenges is the issue of error correction. Quantum computers are extremely sensitive to errors, which can arise from factors such as noise and interference. Researchers are actively working on developing error correction techniques to ensure the reliability of quantum computers.

Another challenge is the scalability of quantum computers. Currently, quantum computers are limited in size and complexity, making it difficult to perform large-scale computations. Researchers are working on developing more powerful quantum processors that can handle larger and more complex calculations.

The race to develop practical quantum computers is heating up, with tech giants like Google, IBM, and Microsoft investing heavily in research and development. In 2019, Google claimed to have achieved quantum supremacy, demonstrating a quantum computer that could solve a specific problem faster than the world’s most powerful supercomputer.

As quantum computing continues to advance, it will be exciting to see the impact it has on various industries and the world at large. With the potential to solve complex problems that are currently beyond the reach of classical computers, quantum computing could usher in a new era of technological innovation and discovery.

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