Somatosensory cortex in macaque monkeys: laminar differences in receptive field size in areas 3b and 1

We have examined receptive field sizes of neurons in granular, supragranular and infragranular layers within somatosensory cortical areas 3b and 1 in macaque monkeys. Receptive fields of neurons in layer 4 are smaller than receptive fields of neurons above or below layer 4. In addition, neurons in area 1 have larger receptive fields than neurons in corresponding layers of area 3b.