Involved in: Symptoms: SSRIs (Prozac, Zoloft), Sleep, Mood, Pain Appetite, Low mood, loss of pleasure in usual MAOIs, BuSpar and Impulsivity activities, trouble sleeping/excess sleeping, change in appetite with weight loss/gain, tiredness, feeling of worthlessness, feelings of hopelessness, difficulty concentrating, avoiding usual activities, thoughts of death or suicide Dopamine Deficiency: Disease DA Agonists Parkinson’s Involved in: Symptoms: Drugs: Parkinson’s Movement and Reward Slowing of automatic movements, levodopa; difficulty swallowing/drooling, Amphetamines for impaired balance and walking, ADHD and Narcolepsy movement problems, shaking/tremors DA Antagonists in limbs at rest, rigid/still muscles, Schizophrenia Drugs: slowed speech haloperidol Excess: Schizophrenia Symptoms: Flat affect, delusions, hallucinations, extremely remote mental associations, bizarre behaviors, social isolation Deficiency: Anxiety GABA GABA Agonists Involved in: Symptoms: Excessive worry, Benzodiazepines: Sleep (calming) and difficulty concentrating, fatigue, Diazepam (Valium), Movement irritability, problems falling/staying Lorazepam (Ativan), asleep, restlessness Alprazolam (Xanax) Alcohol How the Nervous System is Organized The nervous system is divided into two major components, the central nervous system (CNS) and the peripheral nervous system (PNS). The central nervous system consists of the and the which are brain spinal cord, technically not separate structures but made out of one continuous length of tissue. The consists of the nerves that branch out from the peripheral nervous system CNS all over the body. Nerves of the CNS are encased in bone; nerves of the PNS are not. History of the Brain The first appeared 700 million years ago in primitive animals; nerves neural nets throughout the body had equal importance—the locus of neural activity was not in the head.
Involved in: Sleep, Mood, Pain Appetite, and Impulsivity Symptoms: Low mood, loss of pleasure in usual activities, trouble sleeping/excess sleeping, change in appetite with weight loss/gain, tiredness, feeling of worthlessness, feelings of hopelessness, difficulty concentrating, avoiding usual activities, thoughts of death or suicide SSRIs (Prozac, Zoloft), MAOIs, BuSpar Dopamine Involved in: Movement and Reward Deficiency: Parkinson’s Disease Symptoms: Slowing of automatic movements, difficulty swallowing/drooling, impaired balance and walking, movement problems, shaking/tremors in limbs at rest, rigid/still muscles, slowed speech Excess: Schizophrenia Symptoms: Flat affect, delusions, hallucinations, extremely remote mental associations, bizarre behaviors, social isolation DA Agonists Parkinson’s Drugs: levodopa; Amphetamines for ADHD and Narcolepsy DA Antagonists Schizophrenia Drugs: haloperidol GABA Involved in: Sleep (calming) and Movement Deficiency: Anxiety Symptoms: Excessive worry, difficulty concentrating, fatigue, irritability, problems falling/staying asleep, restlessness GABA Agonists Benzodiazepines: Diazepam (Valium), Lorazepam (Ativan), Alprazolam (Xanax) Alcohol How the Nervous System is Organized The nervous system is divided into two major components, the central nervous system (CNS) and the peripheral nervous system (PNS). The central nervous system consists of the brain and the spinal cord, which are technically not separate structures but made out of one continuous length of tissue. The peripheral nervous system consists of the nerves that branch out from the CNS all over the body. Nerves of the CNS are encased in bone; nerves of the PNS are not. History of the Brain The first neural nets appeared 700 million years ago in primitive animals; nerves throughout the body had equal importance—the locus of neural activity was not in the head.