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What will happen if there is damage or removal of the hippocampus?
Hippocampal Damage or Removal: Effects Memory Impairment amnesia
Questioner：Jackson Hayes 2018-04-06 10:03:22
The most authoritative answer in 2024
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Julian Cook——Works at the International Telecommunication Union, Lives in Geneva, Switzerland.
As a neuroscientist with a focus on cognitive neuroscience, I can tell you that the hippocampus is a critical structure within the brain that plays a significant role in memory and spatial navigation. Damage or removal of the hippocampus can lead to a range of cognitive impairments, particularly in the domains of memory.
Hippocampal Damage or Removal: Effects
1. Memory Impairment: The most well-known effect of hippocampal damage is a disruption in the formation and retrieval of new memories, a condition known as amnesia. This can include both short-term and long-term memory problems.
2. Spatial Navigation Issues: The hippocampus is also involved in spatial memory and navigation. Damage to this area can lead to difficulties in recognizing familiar environments and navigating through space.
3. Emotion Regulation: While not as well understood, there is evidence that the hippocampus may play a role in emotional regulation and the formation of emotional memories.
4. Learning Difficulties: The ability to learn new information can be severely impacted, as the hippocampus is crucial for the consolidation of new memories.
5. Cognitive Decline: In some cases, damage to the hippocampus can be an early sign of neurodegenerative diseases like Alzheimer's disease, where it is often one of the first regions to show atrophy.
Treatment and Management
The treatment for hippocampal damage largely depends on the cause. In cases of injury or disease, medical interventions may be aimed at reducing inflammation, preventing further damage, or managing the symptoms. Cognitive rehabilitation may also be beneficial to help individuals adapt to their memory loss and develop strategies to cope with their cognitive impairments.
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Taylor Davis——Works at Amazon, Lives in Seattle.
Hippocampal damage can result in anterograde amnesia: loss of ability to form new memories, although older memories may be safe. Thus, someone who sustains an injury to the hippocampus may have good memory of his childhood and the years before the injury, but relatively little memory for anything that happened since.read more >>
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