Ways Of Studying The Brain-EEGs AO3

Question 1

✅ How are EEGs useful in clinical diagnosis?

Answer 1

EEGs are invaluable for diagnosing neurological conditions like epilepsy and for studying the stages of sleep. This demonstrates their appropriateness and practical application in monitoring brain activity.

Question 2

✅ Why is the temporal resolution of EEGs considered a strength?

Answer 2

EEGs have extremely high temporal resolution, detecting brain activity within milliseconds. This allows researchers to track moment-to-moment brain responses, which is essential for understanding time-sensitive cognitive processes.

Question 3

❌ What is a key limitation of EEG in terms of spatial accuracy?

Answer 3

EEG data is collected from many thousands of neurons, resulting in a generalised signal. This makes it difficult to pinpoint the exact source of brain activity or differentiate between adjacent neurons’ activity.

Question 4

❌ Why doesn’t EEG provide a full picture of brain activity?

Answer 4

EEGs only monitor electrical activity in the outer layers of the brain (cerebral cortex) and cannot detect signals from deeper brain structures, limiting the depth of information provided.