Top-down modulation

1. Reentrant vs. Feedforward Processing (Neuroscience Tips)
2. Primary vs. Secondary Sensory Cortices (Neuroscience Tips)
3. Spatial vs. Object-Based Attention (Neuroscience Tips)
4. Dorsal vs. Ventral Attention Network (Neuroscience Tips)
5. Cortical vs. Subcortical Circuits (Neuroscience Tips)
6. Olfactory Bulb vs. Olfactory Cortex (Neuroscience Tips)
7. Receptive Field vs. Sensory Modality (Neuroscience Tips)
8. Superior Colliculus vs. Inferior Colliculus (Neuroscience Tips)