A study by Posner in which neglect patients performed a spatial cuing task found:

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The question asks about a Posner spatial cuing task study involving neglect patients and asks which finding was reported.
Option 1: 'A large RT deficit when cued targets were presented to the right visual field.' This would imply a major trouble when the cue correctly indicated the right side, which is not the classic pattern in neglect studies, since the neglect typically involves the left side due to right-hemisphere damage rather than a failure to respond to cued right targets.
Option 2: 'A large RT deficit when uncued targets were presented to the left visual field.' This aligns with the idea that neglect patients have difficulty detecting or responding to stimuli in the contralesional (left) field when attention is not appropriately cued, reflecting a failure to disengage or orient attention to the neglected side in uncued conditions.
Option 3: 'A large RT deficit when uncued targets were presented to the right visual field.' Since the right visual field is typically the neglected or spared side depending on lesion laterality, a large deficit here would be inconsistent with the common finding that neglect impairs leftward (contralesional) processing rather than rightward processing in standard Posner cuing tasks.
Option 4: 'A large RT deficit when cued targets were presented to the left visual field.' If targets are cued to the left, neglect patients would be expected to benefit from the cue, reducing RT deficits; thus a large deficit under cued-left conditions would contradict the usual facilitation effect of valid cues for the neglected side.
In summary, the core idea in Posner-style cuing with neglect is that uncontested or uncued left-field targets reveal the most pronounced slowing, reflecting the spatial attentional bias and the cost of not orienting toward the neglected side when a target appears there without an effective cue.

PSYC20007_2025_SM2 Exam: Cognitive Psychology (PSYC20007_2025_SM2)- Requires Respondus LockDown Browser

A study by Posner in which neglect patients performed a spatial cuing task found:

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