BIO SAQS - Psych

Wedekind

________ carried out a study to see what extent MHC alleles play a role in mating behaviour.

Grey matter

________ found in the brain by an MRI or FMRI is used to refer to the branching of neurons in many studies: Study: Maguire or Draganski.

Psychologists

________ are particularly interested in whether memory is localised in the brain, or distributed throughout the brain.

Wedekind carreid

________ out a classic study to test the role of MHC- a set of genes responsible for our immune system.

receptor site

An antagonist is any substance that fits into a(n) ________ on a post- synaptic neuron, inhibiting the neuron from ‘ firing an electrical signal called an action potential.

Neurotransmitters

________ are endogenous, which means they are the brains natural chemical messengers.

Neuroplasticity

________ was originally believed to only occur at the very beginning of life and throughout childhood, when the brain organises itself.

human body

Since the ________ is mostly water, which contains hydrogen, the MRI scanner applies a very strong magnetic field, which aligns the protons in the hydrogen.

Pheromones

________ tend to most commonly affect sexual and mating behaviour.

Caspi

________ carried out a longitudinal study investigating the effects of the mutation of the 5- HTT serotonin reuptake gene.

Acetylcholine

________ is a neurotransmitter that plays an important role in the formation of spatial memories.

Antonova

________ demonstrated that blocking Ach receptors affects our ability to create spatial memories.

Hormones

________ refer to chemicals that are secreted by glands in the endocrine system, and released directly into the bloodstream.

Drugs

________ can also play the same role, and are referred to as exogenous agonists.

dendritic branching

The repeated firing of a neuron (or a set), called long- term potentiation, will result in a gene expression that causes ________.

MRI

The ________ refers to Magnetic Resonance Imaging, which creates images of the structure of the brain.

Alleles

________ specifically refer to different forms of a gene.

Monozygotic twins

________ develop from the same egg, and share 100 % of their genotype.

Kinship

________ (family /pedigree) studies look at the concordance rate of a behaviour within a family across several generations.

Neural networks

________ form when a neuron is stimulated, and an action potential travels down the axon.

Psychologists

________ in the biological approach often use experiments to establish cause- and- effect relationships.

Caspi

________ argued that people with two short- alleles (the mutation) of the 5- HTT gene were more likely to develop depression.

receptor site

Neurotrasmitters are released from the terminal buttons of a neuron, and then will travel across the gap between two neurons, called the synapse, in order to attach to the ________ of a post- synaptic neuron.

Neuroplasticity

________ refers to the ability of our brains physiology to change over time, which is often due to environmental demands.

Pheromones

________ are chemicals believed to be produced and released into the environment by an animal, affecting the behaviour or physiology of others of its own species.

Neurotransmitter

________ are released from the terminal buttons of a neuron, and then will travel across the gap between two neurons, called the synapse, to attach to the receptor site of a post- synaptic neuron.

Neurotransmitters

________ are described as the brains natural chemical messengers.

Neurotransmitters

________ can have either an inhibitory or excitatory effect depending the receptor site it binds to.

Neurotransmitters

________ can have either an inhibitory or excitatory effect depending on the receptor site it binds to.

Study

Maguire

Neurotransmission refers to the process where neurons communicate with other neurons, which occurs when the presynaptic neuron releases chemicals called neurotransmitters to cross the gap between two neurons

Neurotrasmission

Study

Antonova

In addition , the researcher must explain the persons rights

including the right to withdraw at anytime, and that all data will be kept anonymous

Finally, the biological approach involves the need for understanding the complexities of the brain, which the average person likely would not understand

making informed consent difficult

Study

HM

Study

Antonova

When a neuron, or set of neurons, is repeatedly fired in the process referred to as long-term potentiation, this results in a gene expression that causes dendritic branching

increasing the number of synapses available for behaviour

Study

Draganski

One example of an inhibitory neurotransmitter is serotonin… Study

Passamonti

This is because neurons will fire an electrical signal called an action potential repeatedly at the cause of environmental stimulation, which causes neurons to sprout new dendrites

known as dendritic branching

Dendritic branching as a result of environmental stimulation can be seen in a study by Maguire… Study

Draganski or Maguire

Study

Maguire

Wedekind carreid out a classic study to test the role of MHC

a set of genes responsible for our immune system

Whereas dizygotic twins develop from different eggs, and thus share 50% of their genotype

just like regular siblings

Study

Kendler

Study

Weissman