Number tuned responses to sequences of single objects are;

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Question restatement: The prompt asks about number-tuned responses to sequences of single objects and which statement best describes them.
Option 1: 'found only in the frontal lobe' — This is unlikely correct because numerical processing, including number-tuned responses, is often associated with parietal regions (like the intraparietal sulcus) rather than being confined to the frontal lobe. Claiming exclusivity to the frontal lobe ignores a substantial amount of neuroimaging and electrophysiological literature showing parietal involvement in number representation.
Option 2: 'consistent with abstract number processing' — This is a strong candidate. If neurons show tuning to numerical sequences independent of visual specifics, that points to abstract number processing rather than raw perceptual features. The idea is that sequences of single objects elicit responses that reflect numerical quantity or order in an abstract, modality-insensitive way, which aligns with how the brain encodes numbers beyond concrete stimuli.
Option 3: 'match tuned responses to arrays of simultaneously presented objects' — This statement suggests that the same tuning would apply to arrays presented all at once. However, sequence-tuned responses imply processing over time (order) rather than instantaneous array quantity. Therefore, equating sequential tuning with simultaneous-array tuning overlooks the difference between sequential presentation and static ensembles.
Option 4: 'are only found for visual inputs' — Such a claim would be too restrictive. Number-tuned responses have been observed across modalities and tasks, and attributing them exclusively to visual inputs would ignore findings from cross-modal and non-visual numerical processing (e.g., auditory sequences, symbolic numbers), making this option overly narrow.
In summary, the most accurate interpretation is that number-tuned responses to sequences of single objects reflect abstract number processing rather than being confined to a particular brain region, restricted to simultaneous arrays, or limited to visual input. The other options introduce either incorrect regional localization, confound sequence with static arrays, or overly restrictive modality assumptions.

PSYC30018_2025_SM1 MST practice quiz

Number tuned responses to sequences of single objects are;

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