Physiology Flashcards
PNS
peripheral nervous system
Carries sensory input (afferent) from the senses (muscles, skin, organs) to the brain (bottom-up)
And carries motor output (efferent) signals to the muscles, organs and glands (top-down)
- Somatic output; to skeletal muscles, to initiate activity
- Autonomic output; to smooth muscles and glands to modulate activity
Autonomic nervous system
In the peripheral, it controls the
- Sympathetic system
On in activation mode, fight/flight response - Parasympathetic system
On in rest mode, promotes energy conservation, digestion and growth
Why physiology is important in emotion research
Objective measure of emotion
Understanding how the brain controls the body and vice versa
Body is part of emotion
Emotion often expressed in terms of physiology
Understanding process involved in emotion
Activation patterns
Insula;
Shows distinct patterns for different types of disgust.
Heart rate
- different pattern dep on arousal
Temperature
- especially in anger
Facial muscles
The muscle above the eyebrow; Corrugator and the cheek; zygomaticus
are important. They respond in opposite manner
Activation also visible in implicit reactions,
Blindsight
Actual or induced w TMS, studies show that non conscious stimuli show effect in corrugator and zygomaticus, similar to conscious activation
Same goes for pupil response