Inhibition of protein synthesis in primary motor cortex (M1) of monkeys disrupted the performance of skilled sequential movements suggesting that M1 is involved in maintenance of skilled sequential movements.
The subcortical visual pathway through the midbrain superior colliculus is responsible for visually evoked Pavlovian conditioning and dopamine neuron responses with predicted value in monkeys, which remained after lesioning V1.
The spiking activity of the subthalamic nucleus, rather than the activity of striatal projection neurons, orchestrates basal ganglia downstream activity and output commands in health and Parkinson’s disease.
The macaque monkey intraparietal sulcus encompasses 17 cyto- and receptorarchitectonically distinct areas, which can be grouped into three clusters based on (dis)similarities of their molecular structure.
The use of stone tools by macaques in Thailand has reduced the size and population density of coastal shellfish; previously it was thought that tool-assisted overharvesting effects resulted uniquely from human activity.