WorksheetsLecture Notes Psych 2240
Total questions: 100
Worksheet time: 50mins
Which term refers to the use of tests to measure how the brain supports behavior, thinking, and memory?
Neuropsychological Testing
Genetic Testing
Chemical Analysis
Physical Therapy
What is the main purpose of using psychometrics in neuropsychological testing?
To ensure the test truly measures what it’s supposed to
To diagnose physical injuries
To measure blood pressure
To analyze nutrition levels
Which test is commonly used to evaluate spatial and executive functioning in the brain?
Clock drawing task
Mirror star-tracing task
Morris Water Maze
Digit Span Test
What does the Digit Span Test primarily assess?
Working memory
Long-term memory
Declarative memory
Motor memory
When performance on a memory sequence task declines as the sequence gets longer, what does this reveal about memory?
How short-term memory interacts with long-term memory
The accuracy of declarative memory
The speed of motor learning
The effectiveness of psychometrics
Which type of learning is demonstrated by the mirror star-tracing task?
Procedural learning
Declarative learning
Spatial learning
Executive learning
What is the difference between motor memory and declarative memory?
Motor memory involves habitual skills, while declarative memory involves facts and events
Motor memory involves facts, while declarative memory involves skills
Motor memory is only found in animals, while declarative memory is only found in humans
Motor memory is short-term, while declarative memory is long-term
Why are rats considered ideal models for neuroscience research?
They are highly motivated by food, have short life spans, reproduce quickly, and their brains can be studied in fine detail
They are easy to train for sports
They have the largest brains among mammals
They do not require food or water
Which brain structure in rats is vital for spatial navigation and memory?
Hippocampus
Cerebellum
Amygdala
Thalamus
How does the strong sense of smell in rats help neuroscience research?
It provides insights into how the brain processes global and molecular-level information
It helps rats find food faster than other animals
It makes rats better at running mazes
It allows rats to communicate with humans
The clock drawing task can help infer which brain region might be affected in a patient by evaluating spatial and executive functioning. Deficits in performance can indicate which specific brain regions are not functioning properly, based on the assumption that different areas of the brain specialize in specific functions. Which of the following statements best describes this principle?
The clock drawing task is used to test vision, not brain function.
The clock drawing task evaluates spatial and executive functioning, and deficits in performance can indicate which specific brain regions are not functioning properly, based on the assumption that different areas of the brain specialize in specific functions.
The clock drawing task measures only physical strength, so it cannot infer brain region deficits.
The clock drawing task is unrelated to neuropsychological testing.
Describe how the mirror star-tracing task demonstrates procedural learning and why errors decrease over time.
The mirror star-tracing task requires participants to refine motor skills through repetition, showing procedural learning as errors decrease with practice.
The mirror star-tracing task is a test of memory recall, so errors do not decrease.
The mirror star-tracing task is used to measure intelligence, not learning.
The mirror star-tracing task is only for entertainment purposes.
Discuss the importance of dissociating different brain functions in neuropsychological experiments. Provide an example from the text.
Dissociating different brain functions helps researchers understand how motor memory (habitual skills) differs from declarative memory (facts and events), as shown in experiments like the mirror star-tracing task.
Dissociating brain functions is not important in neuroscience.
Dissociating brain functions only applies to animal research.
Dissociating brain functions is used to measure food motivation in rats.
AI learning models benefit from studying rat learning patterns in neuroscience research because these patterns inspire machine learning algorithms, demonstrating intelligence and adaptability. Which of the following best explains this benefit?
AI learning models benefit because rat learning patterns inspire machine learning algorithms, demonstrating intelligence and adaptability.
AI learning models are only based on human behavior.
AI learning models do not use animal data.
AI learning models are unrelated to neuroscience.
Which experiment is commonly used to study spatial learning and long-term memory in rats?
Morris Water Maze
Skinner Box
Radial Arm Maze
Open Field Test
What is the main purpose of using a T-maze in behavioral neuroscience experiments with rats?
To study learning, memory, and decision-making
To measure anxiety levels
To test motor coordination
To observe social interactions
Which neurotransmitter is involved in gene therapy experiments with mutant rats to study memory?
Glutamate
Dopamine
Serotonin
Acetylcholine
What effect does removing most of the hippocampus have, as seen in the case of H.M.?
Serious problems with forming new long-term memories
Improved spatial memory
Enhanced decision-making skills
Increased emotional regulation
How do scientists use advanced brain imaging technologies in research on traumatic brain injury (TBI) and chronic traumatic encephalopathy (CTE)?
To detect structural and functional changes in living brains
To increase neurotransmitter production
To stimulate nerve growth
To prevent brain lesions
Why is the hippocampus considered crucial for memory formation?
It connects to other brain regions through neural pathways
It regulates blood flow in the brain
It controls voluntary muscle movement
It produces hormones for stress regulation
What is the significance of cutting the corpus callosum in brain research?
It affects communication between the left and right sides of the brain
It increases memory capacity
It improves motor coordination
It enhances emotional stability
How do scientists create precise brain lesions in laboratory research?
To study specific brain functions
To increase brain size
To improve neural repair
To enhance sensory perception
Which hormone is linked to bonding, stress regulation, and understanding brain damage?
Oxytocin
Cortisol
Adrenaline
Melatonin
What does the swim pattern of rats with deficient NMDA receptors in the hippocampus indicate?
Impaired long-term memory
Improved spatial memory
Enhanced decision-making
Increased social behavior
Which device is used by researchers to hold an animal's head steady and accurately target specific brain areas for lesion studies?
Stereotaxic apparatus
Electroencephalogram
MRI scanner
Pacemaker
What is the primary role of dopamine in the brain?
Regulating body temperature
Facilitating movement and reward
Controlling blood pressure
Producing hormones
Which brain structure is ablated using stereotaxic surgery to study its role in motor control and Parkinson’s disease?
Amygdala
Globus pallidus
Hippocampus
Cerebellum
In Parkinson’s disease, what happens to dopamine-producing neurons?
They regenerate
They degenerate
They multiply
They become inactive temporarily
What is a possible effect of long-term use of dopaminergic drugs in treating Parkinson’s disease?
Increased sensitivity to dopamine
Tolerance to the drugs
Immediate cure
Decreased motor impairment
How does Deep Brain Stimulation (DBS) help treat neurological disorders?
By removing brain tissue
By using low-voltage electrical impulses to regulate abnormal activity
By increasing dopamine production
By blocking blood flow to affected areas
What is the function of Transcranial Magnetic Stimulation (TMS)?
It uses chemicals to stimulate the brain
It uses a powerful magnet to inactivate or stimulate brain parts through electromagnetic induction
It uses light to activate neurons
It uses sound waves to treat depression
Which molecules in the retina are responsible for detecting light?
Neurons and glia
Rods and cones
Axons and dendrites
Myelin and synapses
What effect does inhibiting light-sensitive pathways in the brain have on the fear response?
It increases the fear response
It decreases the fear response
It has no effect
It causes memory loss
What does a CT scan use to create cross-sectional “slices” of the brain?
Ultrasound waves
Magnetic fields
X-rays
Infrared light
How do dense materials like bone appear on a CT scan?
Black
White
Gray
Transparent
What is the appearance of less dense materials, such as ventricles filled with cerebrospinal fluid, on a CT scan?
Brighter
Darker
Transparent
Red
Which brain region is involved in fear and emotional processing and is influenced by light-sensitive molecules?
Hippocampus
Amygdala
Thalamus
Cerebellum
Why is contrast in CT scans important?
It helps visualize brain structures and detect abnormalities like bleeding, tumors, or swelling
It increases the speed of scanning
It reduces radiation exposure
It improves color accuracy
Which imaging technique uses magnetic fields and radio waves to generate detailed images of brain tissue?
MRI (Magnetic Resonance Imaging)
PET Scan (Positron Emission Tomography)
EEG (Electroencephalogram)
CT Scan (Computed Tomography)
What do hydrogen protons in water molecules do in resting neurons?
Spin randomly
Align with the magnetic field
Release energy
Move along axons
When exposed to a magnetic field, what happens to hydrogen protons in MRI?
They align with the field and release energy
They diffuse along white matter tracts
They emit radioactive tracers
They record electrical activity
In MRI, what is the role of the magnet compared to?
The moon
The sun
The earth
The star
What does the MRI scanner detect to create an image?
Released energy
Radioactive tracers
Water molecule diffusion
Electrical activity
DTI (Diffusion Tensor Imaging) is specialized to focus on what aspect within brain tissue?
Water movement
Electrical activity
Radioactive tracer emission
Blood flow
Which brain structures does DTI help to clarify by measuring water molecule diffusion?
Grey and white matter
Blood vessels
Neurons and glia
Synapses and dendrites
What does a coil detector sense in DTI?
Direction and motion of H₂O molecules
Electrical impulses
Glucose metabolism
Magnetic field strength
What does a PET scan primarily measure?
Brain function
Brain structure
Water movement
Electrical activity
What does a PET scan use to show which brain areas are most active during a task?
Radioactive tracers
Magnetic fields
Water molecules
Electrodes
Which type of resolution in PET scans refers to how quickly a brain area responds to a task?
Temporal resolution
Spatial resolution
Magnetic resolution
Electrical resolution
What does spatial resolution in PET scans refer to?
How precisely the scan can locate activity
How quickly the scan responds
How much water is present
How strong the magnetic field is
What does an EEG record from the scalp?
Electrical activity
Water movement
Radioactive tracers
Magnetic fields
What is used in EEG to record electrical activity from the scalp?
Swimming cap covered in electrodes
Magnetic coil
Radioactive tracer
Water sensor
A researcher wants to study the connectivity between brain regions by tracking water molecule diffusion. Which imaging technique should they use?
DTI (Diffusion Tensor Imaging)
EEG (Electroencephalogram)
PET Scan (Positron Emission Tomography)
MRI (Magnetic Resonance Imaging)
If a neuroscientist needs to know both how quickly and precisely a brain area responds to a stimulus, which scan provides both temporal and spatial resolution?
PET Scan
EEG
MRI
DTI
A neurologist wants to observe the electrical activity of a patient’s brain during sleep. Which method should they use?
EEG
PET Scan
MRI
DTI
Explain how MRI creates images based on tissue composition and density. (DoK Level 3)
By detecting released energy from hydrogen protons aligned with a magnetic field
By measuring electrical activity with electrodes
By tracking radioactive tracers in glucose
By sensing water molecule diffusion
A neuroscientist is interested in mapping neural pathways with high clarity. Which imaging technique and method should they use, and why? (DoK Level 3)
DTI, because it measures water molecule diffusion along white matter tracts
EEG, because it records electrical activity from the scalp
PET Scan, because it tracks radioactive tracers
MRI, because it uses magnetic fields and radio waves
Which brain activities are EEGs especially useful for studying?
Brain waves, sleep, and epilepsy
Blood oxygenation, memory, and attention
Reaction times, biases, and associations
Neural networks, feedback, and learning
What does fMRI measure in real time to track brain activity?
Changes in blood oxygenation
Neural firing patterns
Reaction times
Additive impact functions
Which molecule becomes paramagnetic when deoxygenated, allowing fMRI to detect brain activity?
Hemoglobin
Dopamine
Serotonin
Glucose
What is the main function of Artificial Neural Networks (ANNs) in neuroscience?
To model how neurons process information
To measure blood oxygenation
To assess implicit biases
To record brain waves
How do Artificial Neural Networks learn and reduce error?
By backpropagation and adjusting weights
By measuring reaction times
By tracking blood oxygenation
By recording EEG signals
What does the Implicit Association Test (IAT) measure to assess implicit biases or associations?
Reaction times
Blood oxygenation
Neural firing patterns
Additive impact functions
EEGs can pick up which type of artifacts that may distort signals?
Motor artifacts
Blood oxygenation artifacts
Reaction time artifacts
Neural network artifacts
Why might EEG signals vary across individuals?
Differences in skull thickness
Differences in blood oxygenation
Differences in reaction times
Differences in neural network models
What does fMRI use to reveal which brain areas are active during a task?
Differences in oxygen levels
Reaction times
EEG voltage changes
Neural network weights
What is the purpose of studying functional connectivity with fMRI?
To show how brain regions coordinate and communicate
To measure reaction times
To record motor artifacts
To simulate cognitive processes
In Artificial Neural Networks, what is the role of feedback?
It helps the network learn and adjust its weights
It measures blood oxygenation
It records EEG signals
It assesses implicit biases
How do EEG graphs show neural firing patterns?
By plotting negative voltage changes and positive deflections
By measuring reaction times
By tracking blood oxygenation
By simulating cognitive processes
Explain how backpropagation in Artificial Neural Networks is similar to learning in the human brain. (DoK Level 3)
Both adjust their weights or connections based on feedback to reduce error
Both measure blood oxygenation to track activity
Both record motor artifacts to improve accuracy
Both assess reaction times to determine biases
Describe how fMRI can be used to study functional connectivity in the brain. (DoK Level 3)
By revealing how different brain regions coordinate and communicate during thought or movement
By measuring reaction times to assess associations
By recording EEG signals during sleep
By simulating cognitive processes with neural networks
Which of the following senses is responsible for awareness of body position and movement?
Proprioception
Nociception
Thermoception
Vestibular sense
What is the main function of the thalamus in sensory pathways?
It produces physical energy
It is the brain’s sensory relay center
It interprets smells directly
It controls body temperature
Which sense bypasses the thalamus and goes directly to the olfactory bulb?
Vision
Hearing
Olfaction (smell)
Taste
How does vision differ from other senses in terms of detecting stimuli?
Vision detects light from a distance
Vision detects stimuli through direct contact
Vision detects only temperature changes
Vision bypasses the thalamus
Explain how sensory information is transduced and why this process is important for perception.
Sensory information is transduced by converting physical energy into electrical signals, allowing the brain to interpret stimuli and produce perception.
Sensory information is transduced by bypassing the thalamus, which prevents perception.
Sensory information is transduced by increasing body temperature, which enhances perception.
Sensory information is transduced by direct contact with stimuli, which is unrelated to perception.
Why do smells often trigger strong memories or emotions?
Because olfactory signals pass through the thalamus
Because olfactory signals connect to the temporal lobe and limbic system
Because olfactory signals are interpreted by the vestibular sense
Because olfactory signals are converted into pain signals
Which structure of the eye is responsible for protecting the eye and bending (refracting) incoming light?
Cornea
Lens
Retina
Iris
What is the function of the aqueous humor in the eye?
Maintains eye pressure
Controls pupil size
Focuses light onto the retina
Detects color and fine detail
In bright light, what happens to the pupil?
Contracts
Dilates
Changes shape
Becomes colored
Which part of the eye controls pupil size using tiny muscles?
Iris
Lens
Retina
Cornea
What is the main function of the lens in the eye?
Focuses light onto the retina by changing shape
Maintains eye pressure
Detects color and fine detail
Controls how much light enters
Where is the retina located in the eye?
At the back of the eyeball
Behind the cornea
In the center of the pupil
Surrounding the iris
How does the brain allow us to perceive the world as upright, even though the image on the retina is inverted?
By perceptual processes that automatically flip and interpret the image correctly
By changing the shape of the lens
By contracting the pupil
By increasing eye pressure
Why does a tree appear larger on the retina when it is closer to the eye?
It takes up more retinal space
The pupil contracts
The lens becomes thicker
The cornea bends more light
Which type of photoreceptor cell is responsible for black-and-white (grayscale) vision and is sensitive to low light and motion?
Rods
Cones
Bipolar cells
Fovea
Where in the retina are cones most concentrated, and what type of vision do they provide?
Fovea; sharp, detailed color vision
Periphery; night and peripheral vision
Cornea; black-and-white vision
Lens; motion detection
After light is detected by photoreceptors, to which cells are signals sent?
Bipolar cells
Rod cells
Cone cells
Retinal cells
Explain how the distribution of rods and cones in the retina affects vision in different lighting conditions and visual tasks.
The fovea contains mostly cones for sharp, detailed color vision, while the periphery has more rods for night and peripheral vision.
The fovea contains mostly rods for night vision, while the periphery has more cones for color vision.
Both the fovea and periphery contain equal numbers of rods and cones for all types of vision.
The cornea contains rods for color vision, while the lens contains cones for night vision.
Which type of retinal ganglion cell receives input primarily from rods?
M (Magnocellular) cells
P (Parvocellular) cells
Bipolar cells
Photoreceptor cells
What is the main function of P (Parvocellular) cells in the retina?
Detect motion, depth, and general shapes
Process color, fine detail, and form
Provide fast, but low-detail information
Bundle together to form the optic nerve
What is the name of the protein in rods that is bound to a light-sensitive molecule called retinal?
Opsin
Melanin
Hemoglobin
Myosin
What happens when light hits rhodopsin in the photoreceptors?
It causes a conformational change in the retinal molecule
It increases blood flow to the retina
It produces melanin in the rods
It triggers muscle contraction in the eye
Which process allows cones to adapt quickly to changing light conditions?
Rhodopsin regenerates quickly in cones
Rhodopsin regenerates slowly in rods
Opsin is produced in the ganglion cells
Retinal is destroyed in bright light
Why does night vision recover more slowly after exposure to bright light?
Rhodopsin regeneration takes longer in rods
Cones are more sensitive to light than rods
Ganglion cells are damaged by bright light
Opsin is not present in rods
Which cells bundle together to form the optic nerve?
Ganglion cells
Bipolar cells
Rods
Cones
What is the result of the chemical reaction that depolarizes the photoreceptor?
An electrical signal is sent to the brain
The eye changes color
The retina thickens
The optic nerve shrinks
Which type of retinal ganglion cell provides fast, but low-detail information useful for night vision and movement?
M (Magnocellular) cells
P (Parvocellular) cells
Bipolar cells
Photoreceptor cells
What is the physical space with no photoreceptors called, created where the optic nerve exits?
Blind spot
Fovea
Retina
Lens
Which type of cone cell responds to blue light in the human eye?
Short-wavelength (S) cones
Medium-wavelength (M) cones
Long-wavelength (L) cones
Rod cells
