1. The withdrawal reflex: This reflex, triggered by a painful stimulus, is typically modified by the brain. While the initial response is to withdraw the affected limb, the brain can override this response based on factors like the severity of the pain, the context of the situation, and the individual's learned experiences. For example, if you accidentally touch a hot stove, you'll likely jerk your hand back. However, if you're holding a hot pan while cooking, your brain might suppress the withdrawal reflex so you can complete the task.

2. The startle reflex: This reflex, triggered by a sudden loud noise or unexpected event, is also influenced by the brain. The initial response is a sudden jump and muscle tension. The brain, however, can modify the intensity of the response based on the perceived threat. If the noise is familiar and non-threatening, the response might be minimal or even suppressed. If the noise is unexpected and potentially dangerous, the response will be more pronounced.

It's important to note that while these reflexes are influenced by the brain, they are still considered somatic reflexes. This is because they involve the stimulation of skeletal muscles, which are under voluntary control. The brain's role in these reflexes is primarily to modulate and refine the response based on learned information and context.