Class notes

Unit 3 - Biopsychology:Neuroscience & Behaviour

5 views 0 purchase

Course
Psyc 101

Institution
University Of British Columbia (UBC )

Gain insights into the structure and function of the nervous system, including neurons, neurotransmitters, and neural networks. Delve into the fascinating world of cognitive processes, emotions, motivation, and the interplay between biology and behaviour. These notes provide a comprehensive overvie...

[Show more]

Preview 2 out of 8 pages

View example

Uploaded on May 11, 2023
Number of pages 8
Written in 2020/2021
Type Class notes
Professor(s) Eva zysk
Contains Biopsychology:neuroscience & behaviour

biopsychology
brain
neuroscience
behaviour
psychology
nervous system
neurons
neurotransmitters
neural networks
cognitive processes
emotions
motivations

CA$12.27

Added

Add to cart Add to wishlist

100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached

Brain

Spinal Cord

Biopsychology Lecture
Psyc 101 – Eva Zysk

Nervous System Layout
- The vertebrate nervous system (NS) is composed of two divisions:
1. Central Nervous System (CNS)
 Composed of brain and spinal cord
2. Peripheral Nervous System (PNS)
 Somatic Nervous System (SNS)
o Interacts with the external environment
o Voluntary control
o Afferent nerves carry sensory signals in from the
skin, skeletal muscles, joints, eyes, ears, into the
CNS.
o Sensory Neuron
o Efferent nerves carry motor sensory signals out of the body
o Motor Neuron
 Autonomic Nervous System (ANS)
o Participates in the regulation of the internal environment
o Not that much control, happens automatically
o Afferent nerves carry sensory signals from the internal organs to the CNS
o Efferent nerves carry motor signals from the CNS to internal organs
o Two types of efferent nerves:
- Sympathetic nerves: comprise the sympathetic NS. Arousing: sympathetic nerves
mobilize energy resources in threatening situations (e.g., adrenal gland). Fight or
Flight Response.
- Parasympathetic nerves: comprise the parasympathetic NS. Calming:
parasympathetic nerves act to conserve energy

Body Part Sympathetic Parasympathetic
Eyes Pupils dilated, dry, far vision Pupils constricted, moist, near vision
Mouth Dry Salivating
Skin Goose bumps No goose bumps
Palms Sweaty Dry
Lungs Passages dilated Passages constricted
Heart Increased rate Decreased rate
Blood Supply maximum to muscles Supply maximum to internal organs
Adrenal Glands Increased activity Decreased activity
Digestion Inhibited Stimulated

The Brain
- Forebrain
 Controls complex cognitive, emotional, sensory & motor function. Divided into:
 Subcortical Cortex
 Cerebral System

- Midbrain
 Orienting us to stimuli and the environment
 Small area of the brain responsible for orientation and movement
 Tectum  orients the organism in its environment
 Tegmentum  involved with movement and arousal, helps orient organism toward sensory stimuli
- Hindbrain

,  Basic functioning
 Coordinates information coming into and out of the spinal cord
 Includes cerebellum, pons, medulla, reticular formation.
- Medulla: coordinates heart rate, circulation, breathing
- Reticular Formation: responsible for regulation of sleep, wakefulness, and arousal
- Pons: “bridge”, a structure that relays information from the cerebellum to the rest of the brain.
- Cerebellum: “little brain”, larges structure of the hindbrain, controls fine motor skills, refines
balance.

Forebrain Midbrain Hindbrain

Forebrain Part Function
Basal Ganglia Set of subcortical structures that direct intentional movements. Controls posture & movement
Thalamus Relays and filters information from the senses (except smell) and transmits the information to the
cerebral cortex.
Hypothalamus Regulates body temperature, hunger, thirst, sexual behaviour. Located below the thalamus.
Pituitary gland Master gland of the body’s hormone producing system (i.e. endocrine system). Releases hormones
which direct the functions of many other glands in the body.
- Controls growth, blood pressure, metabolism, energy management.
- E.g. tumour on gland may not be able to stop growth (extremely tall)
Amygdala Emotion, fear, anger. Plays a central role in many emotional processes, particularly the formation of
emotional memories, involved in fear. Looks like an almond.
Hippocampus Memory, limbic output. Critical in creating new memories and integrating them into a network of
knowledge to be stored in other parts of the cerebral cortex.
Limbic system Where the subcortical structures meet the cortex. Includes the hippocampus, amygdala, and
hypothalamus. Involved in mood, motivation, learning & memory
- Feeding
- Fighting
- Fleeing
- Sexual Behaviour

Neuroanatomy

Cerebral Cortex
- Information processing centre responsible for most complex aspects of perception, emotion, movement, &
thought
- 2-4, thick, wrinkled surface to increase surface area for nerves and neurons
 Gyrus (pl gyri) – smooth surface (raised parts)
 Sulcus (pl. sulci) – indentations of fold

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller yaldahomayoun. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$12.27. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

60434 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling