The Mind's Machine 3e Student Resources is no longer available and it was replaced by The Mind's Machine, 4e.
Chapter 5 Outline
Introduction: What You See Is What You Get
PART I Sensory Processing and the Somatosensory System
Sensory Systems Detect Various Forms of Energy
Receptor Cells Convert Sensory Signals into Electrical Activity
Sensory Information Processing Is Selective and Analytical
Sensory events are encoded as streams of action potentials
Sensory neurons respond to stimuli falling in their receptive fields
Receptors may show adaptation to unchanging stimuli
Sometimes we need receptors to be quiet
Successive Levels of the CNS Process Sensory Information
Sensory cortex is highly organized
Sensory brain regions influence one another and change over time
PART II Pain: The Body’s Emergency Signaling System
Human Pain Varies in Several Dimensions
A Discrete Pain Pathway Projects from Body to Brain
Peripheral receptors get the initial message
SIGNS & SYMPTOMS: A Professional Eater Meets His Match
Special neural pathways carry pain information to the brain
Pain Control Can Be Difficult
Analgesic drugs are highly effective
Electrical stimulation can sometimes relieve pain
Placebos effectively control pain in some people, but not all
Activation of endogenous opioids relieves pain
PART III Movement and the Motor System
Behavior Requires Movements That Are Precisely Programmed and Monitored
A Complex Neural System Controls Muscles to Create Behavior
Muscles and the skeleton work together to move the body
Sensory feedback from muscles, tendons, and joints governs movement
The spinal cord mediates “automatic” responses and receives inputs from the brain
Motor cortex plans and executes movements—and more
RESEARCHERS AT WORK: Mirror neurons in premotor cortex track movements in others
Extrapyramidal systems regulate and fine-tune motor commands
Damage to extrapyramidal systems impairs movement