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All Verbal Ability and Reading Comprehension (VARC) 32 / 557

a. This activity is commonly associated with self-referential thought, future planning, memory retrieval, and general mind-wandering, suggesting its role in constructing personal narratives.
b. The default mode network (DMN), a set of interconnected brain regions, becomes particularly active when an individual is not focused on the external world, but rather engaged in internally directed cognition.
c. Understanding the DMN's dynamics is crucial for insights into conditions like depression and Alzheimer's, where its dysregulation is often observed, highlighting its importance in mental health.
d. Conversely, when individuals engage in demanding external tasks requiring focused attention, the DMN typically deactivates, ceding dominance to task-positive networks.

These sentences, when properly sequenced, form a coherent paragraph. Which of the options best outline their correct order?

1. b, a, d, c

2. b, d, a, c

3. a, b, d, c

4. d, b, a, c

Correct Answer: 1 (b, a, d, c)
To solve "Sentence Rearrangement" or "Para-jumble" tasks, look for the logical flow of ideas:
Step 1 (Introduction): Sentence (b) is the ideal opening. It introduces the core concept, the Default Mode Network, and defines its primary characteristic (activity during internally directed cognition).
Step 2 (Elaboration): Sentence (a) logically follows (b). The phrase "This activity" directly refers to the DMN's activity mentioned in (b), elaborating on the specific cognitive functions associated with it, such as mind-wandering and self-referential thought.
Step 3 (Secondary Factor): Sentence (d) presents a contrasting scenario. The word "Conversely" signals a shift to how the DMN behaves in an opposing context – during demanding external tasks – thus providing a more complete picture of its function.
Step 4 (Conclusion/Result): Sentence (c) serves as the concluding statement, highlighting the broader significance and implications of understanding the DMN's dynamics, particularly in the context of mental health conditions.

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