The standard model of consolidation proposes that the hippocampus is

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When tackling the standard model of consolidation, the first step is to map what the hippocampus is proposed to do during memory processing. 
Option 1: 'strongly active for both new memories as they are being consolidated and memories for events that occurred long ago and are already consolidated.' While the hippocampus is crucial for encoding new memories, the standard model does not assign sustained strong hippocampal involvement to remote, already consolidated memories; these are thought to rely more on cortical stores. So this choice overstates hippocampal involvement for old memories. 
Option 2: 'strongly active for long-ago memories that are already consolidated but becomes less active when memories are first formed and being consolidated.' This reverses the timing. The hippocampus is especially engaged during the formation and initial consolidation of new memories, not predominantly during remote memory retrieval; thus this description misplaces activity. 
Option 3: 'strongly active when memories are first formed and being consolidated but becomes less active when retrieving older memories that are already consolidated.' This aligns with the standard model: initial encoding and consolidation require the hippocampus, while remote memories become more cortically dependent and hippocampal involvement diminishes during retrieval of established memories. The phrasing accurately captures the dynamic shift in reliance from hippocampus to cortex over time. 
Option 4: 'uninvolved in memory consolidation.' This is incorrect, as the hippocampus is central to the consolidation process, not uninvolved; this contradicts core neurobiological understanding. 
Overall, evaluating each option reveals that only the third description matches the conventional view of hippocampal engagement across memory stages, while the others misstate the timing or existence of hippocampal involvement in consolidation and retrieval.

PSY270H5 S LEC0101 Practice quiz

The standard model of consolidation proposes that the hippocampus is

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