Which stroke syndrome is primarily associated with memory impairment and apathy in addition to sensory or motor deficits?

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Memory impairment and apathy with sensory or motor deficits point to thalamic syndrome because the thalamus serves as a major relay and integrator of sensory information while also linking to limbic and prefrontal circuits that govern memory and motivation. When the thalamus is damaged, patients commonly have contralateral sensory loss (and sometimes pain) along with cognitive-emotional changes such as memory disturbance and reduced initiative or apathy. This combination is distinctive from lacunar syndromes, which are typically limited to pure motor, pure sensory, or mixed sensorimotor symptoms without notable cognitive or motivational changes. Top-of-basilar syndrome involves brainstem and widespread cortical signs rather than this specific pattern of memory and affective changes with sensory or motor deficits.