Biological Psychology and Brain
Function Master the Exam –
Comprehensive Study Guide with
Practice Questions and Verified
Answers
What percentage of our brain do we use?
The exact percentage is debated, but it is commonly believed that we use all parts of
our brain for various functions.
What is the main focus of biological psychology?
The study of the relationship between biological processes and behavior.
What did Aristotle believe about the soul?
He believed the soul was intelligence and the heart was the mechanism.
What was Descartes' view on the soul and the brain?
He believed the soul was intelligence and the brain was the mechanism, using
hydraulics as a model.
What is equipotentiality in the context of the brain?
The idea that all parts of the brain can perform the same functions.
Who proposed that the brain is specialized in controlling different behaviors?
Paul Broca.
What is phrenology?
A theory proposed by Joseph Gall that claimed the shape of the skull could determine
personality traits.
What are the three different functions of neurons?
1. Motor neurons transmit messages to muscles. 2. Sensory neurons respond to
environmental changes. 3. Interneurons connect sensory and motor neurons.
What are the four functional subdivisions of neurons?
1. Input Zone 2. Integration Zone 3. Conduction Zone 4. Output Zone.
What are the Nodes of Ranvier?
Gaps in the myelin sheath of axons that facilitate the rapid conduction of nerve
impulses.
What did Golgi and Cajal contribute to neuroscience?
Golgi believed neurons were continuous, while Cajal proposed the Neuron Doctrine,
stating that neurons are independent and communicate across synapses.
What is an action potential?
,A rapid rise and fall in voltage or membrane potential across a cellular membrane,
allowing neurons to transmit signals.
What is the role of neurotransmitters?
Chemical messengers that transmit signals across synapses from one neuron to
another.
What is the function of dopamine?
Involved in motor behavior, emotion, motivation, and pleasure; linked to disorders like
schizophrenia and Parkinson's disease.
What does serotonin regulate?
Mood regulation and aggression; targeted by anxiety and depression medications.
What is the role of acetylcholine?
Involved in muscle contraction, learning, and memory; a deficiency is linked to
Alzheimer's disease.
What is the function of the hypothalamus?
Regulates basic body functions and drives such as hunger, thirst, sleep, and body
temperature.
What is the function of the amygdala?
Important for emotional processing.
What is the role of the hippocampus?
Key for building long-term memories; removal can lead to anterograde amnesia.
What does the pituitary gland regulate?
Secretes hormones that regulate homeostasis.
What is the function of the thalamus?
Receives input from sensory modalities and relays it to different areas of the cortex.
What is the significance of the corpus callosum?
Connects the left and right hemispheres of the brain, allowing communication between
them.
What is the purpose of functional imaging studies like PET and fMRI?
To measure brain activity and understand the biological basis of behavior and mental
processes.
What is the all-or-none principle in neuron firing?
A neuron either fires completely or not at all; there is no partial firing.
What are excitatory and inhibitory postsynaptic potentials?
Excitatory postsynaptic potentials (EPSPs) increase the likelihood of a neuron firing,
while inhibitory postsynaptic potentials (IPSPs) decrease it.
What is the role of psychoactive drugs in synaptic communication?
They alter synaptic communication by acting as agonists (copying neurotransmitters) or
antagonists (blocking neurotransmitters).
What does the phrase 'neurons that fire together wire together' imply?
It suggests that simultaneous activation of neurons strengthens their connections,
contributing to learning and memory.
What is the significance of the refractory period in neuron firing?
It is the time during which a neuron cannot fire again until it returns to its resting
potential.
What percentage of our brain do we use?
, The exact percentage is debated, but it is commonly believed that we use all parts of
our brain for various functions.
What is the main focus of biological psychology?
The study of the relationship between biological processes and behavior.
What did Aristotle believe about the soul?
He believed the soul was intelligence and the heart was the mechanism.
What was Descartes' view on the soul and the brain?
He believed the soul was intelligence and the brain was the mechanism, using
hydraulics as a model.
What is equipotentiality in the context of the brain?
The idea that all parts of the brain can perform the same functions.
Who proposed that the brain is specialized in controlling different behaviors?
Paul Broca.
What is phrenology?
A theory proposed by Joseph Gall that claimed the shape of the skull could determine
personality traits.
What are the three different functions of neurons?
1. Motor neurons transmit messages to muscles. 2. Sensory neurons respond to
environmental changes. 3. Interneurons connect sensory and motor neurons.
What are the four functional subdivisions of neurons?
1. Input Zone 2. Integration Zone 3. Conduction Zone 4. Output Zone.
What are the Nodes of Ranvier?
Gaps in the myelin sheath of axons that facilitate the rapid conduction of nerve
impulses.
What did Golgi and Cajal contribute to neuroscience?
Golgi believed neurons were continuous, while Cajal proposed the Neuron Doctrine,
stating that neurons are independent and communicate across synapses.
What is an action potential?
A rapid rise and fall in voltage or membrane potential across a cellular membrane,
allowing neurons to transmit signals.
What is the role of neurotransmitters?
Chemical messengers that transmit signals across synapses from one neuron to
another.
What is the function of dopamine?
Involved in motor behavior, emotion, motivation, and pleasure; linked to disorders like
schizophrenia and Parkinson's disease.
What does serotonin regulate?
Mood regulation and aggression; targeted by anxiety and depression medications.
What is the role of acetylcholine?
Involved in muscle contraction, learning, and memory; a deficiency is linked to
Alzheimer's disease.
What is the function of the hypothalamus?
Regulates basic body functions and drives such as hunger, thirst, sleep, and body
temperature.
What is the function of the amygdala?
Important for emotional processing.
Function Master the Exam –
Comprehensive Study Guide with
Practice Questions and Verified
Answers
What percentage of our brain do we use?
The exact percentage is debated, but it is commonly believed that we use all parts of
our brain for various functions.
What is the main focus of biological psychology?
The study of the relationship between biological processes and behavior.
What did Aristotle believe about the soul?
He believed the soul was intelligence and the heart was the mechanism.
What was Descartes' view on the soul and the brain?
He believed the soul was intelligence and the brain was the mechanism, using
hydraulics as a model.
What is equipotentiality in the context of the brain?
The idea that all parts of the brain can perform the same functions.
Who proposed that the brain is specialized in controlling different behaviors?
Paul Broca.
What is phrenology?
A theory proposed by Joseph Gall that claimed the shape of the skull could determine
personality traits.
What are the three different functions of neurons?
1. Motor neurons transmit messages to muscles. 2. Sensory neurons respond to
environmental changes. 3. Interneurons connect sensory and motor neurons.
What are the four functional subdivisions of neurons?
1. Input Zone 2. Integration Zone 3. Conduction Zone 4. Output Zone.
What are the Nodes of Ranvier?
Gaps in the myelin sheath of axons that facilitate the rapid conduction of nerve
impulses.
What did Golgi and Cajal contribute to neuroscience?
Golgi believed neurons were continuous, while Cajal proposed the Neuron Doctrine,
stating that neurons are independent and communicate across synapses.
What is an action potential?
,A rapid rise and fall in voltage or membrane potential across a cellular membrane,
allowing neurons to transmit signals.
What is the role of neurotransmitters?
Chemical messengers that transmit signals across synapses from one neuron to
another.
What is the function of dopamine?
Involved in motor behavior, emotion, motivation, and pleasure; linked to disorders like
schizophrenia and Parkinson's disease.
What does serotonin regulate?
Mood regulation and aggression; targeted by anxiety and depression medications.
What is the role of acetylcholine?
Involved in muscle contraction, learning, and memory; a deficiency is linked to
Alzheimer's disease.
What is the function of the hypothalamus?
Regulates basic body functions and drives such as hunger, thirst, sleep, and body
temperature.
What is the function of the amygdala?
Important for emotional processing.
What is the role of the hippocampus?
Key for building long-term memories; removal can lead to anterograde amnesia.
What does the pituitary gland regulate?
Secretes hormones that regulate homeostasis.
What is the function of the thalamus?
Receives input from sensory modalities and relays it to different areas of the cortex.
What is the significance of the corpus callosum?
Connects the left and right hemispheres of the brain, allowing communication between
them.
What is the purpose of functional imaging studies like PET and fMRI?
To measure brain activity and understand the biological basis of behavior and mental
processes.
What is the all-or-none principle in neuron firing?
A neuron either fires completely or not at all; there is no partial firing.
What are excitatory and inhibitory postsynaptic potentials?
Excitatory postsynaptic potentials (EPSPs) increase the likelihood of a neuron firing,
while inhibitory postsynaptic potentials (IPSPs) decrease it.
What is the role of psychoactive drugs in synaptic communication?
They alter synaptic communication by acting as agonists (copying neurotransmitters) or
antagonists (blocking neurotransmitters).
What does the phrase 'neurons that fire together wire together' imply?
It suggests that simultaneous activation of neurons strengthens their connections,
contributing to learning and memory.
What is the significance of the refractory period in neuron firing?
It is the time during which a neuron cannot fire again until it returns to its resting
potential.
What percentage of our brain do we use?
, The exact percentage is debated, but it is commonly believed that we use all parts of
our brain for various functions.
What is the main focus of biological psychology?
The study of the relationship between biological processes and behavior.
What did Aristotle believe about the soul?
He believed the soul was intelligence and the heart was the mechanism.
What was Descartes' view on the soul and the brain?
He believed the soul was intelligence and the brain was the mechanism, using
hydraulics as a model.
What is equipotentiality in the context of the brain?
The idea that all parts of the brain can perform the same functions.
Who proposed that the brain is specialized in controlling different behaviors?
Paul Broca.
What is phrenology?
A theory proposed by Joseph Gall that claimed the shape of the skull could determine
personality traits.
What are the three different functions of neurons?
1. Motor neurons transmit messages to muscles. 2. Sensory neurons respond to
environmental changes. 3. Interneurons connect sensory and motor neurons.
What are the four functional subdivisions of neurons?
1. Input Zone 2. Integration Zone 3. Conduction Zone 4. Output Zone.
What are the Nodes of Ranvier?
Gaps in the myelin sheath of axons that facilitate the rapid conduction of nerve
impulses.
What did Golgi and Cajal contribute to neuroscience?
Golgi believed neurons were continuous, while Cajal proposed the Neuron Doctrine,
stating that neurons are independent and communicate across synapses.
What is an action potential?
A rapid rise and fall in voltage or membrane potential across a cellular membrane,
allowing neurons to transmit signals.
What is the role of neurotransmitters?
Chemical messengers that transmit signals across synapses from one neuron to
another.
What is the function of dopamine?
Involved in motor behavior, emotion, motivation, and pleasure; linked to disorders like
schizophrenia and Parkinson's disease.
What does serotonin regulate?
Mood regulation and aggression; targeted by anxiety and depression medications.
What is the role of acetylcholine?
Involved in muscle contraction, learning, and memory; a deficiency is linked to
Alzheimer's disease.
What is the function of the hypothalamus?
Regulates basic body functions and drives such as hunger, thirst, sleep, and body
temperature.
What is the function of the amygdala?
Important for emotional processing.
