Psychology 261

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Psychology 261

Physiological Psychology

Welcome to the course!

How does PSYCH 261 fit into the psychology curriculum?

We expect some basic knowledge from PSYCH

101

We DO NOT expect any particular background in the life sciences, but inevitably such background will help you if you have it.

This course serves as prerequisite for: PSYCH

306 (perception), PSYCH 307 (human neuropsychology), PSYCH 399 (Research in behavioural neuroscience), PSYCH 461

(Honours seminar in behavioural neuroscience).

Who is teaching the course?

Colin Ellard (phone ext. 6852, email cellard@watarts.uwaterloo.ca

).

More about me than you care to know.

What I can do for you

Lectures, questions, evaluation

What I can’t do for you

Read the textbook or make this really easy

Who else is teaching the course?

The teaching assistants

Gillian Munro ( gesmunro@watarts.uwaterloo.ca

, PAS

4219)

Chris Striemer ( clstreim@watarts.uwaterloo.ca

, PAS

4227)

What the teaching assistants can do for you

Tutorials and office hours

What the teaching assistants cannot do for you

Tell you what questions are on the tests (they won’t know) or give you extra marks.

What is the textbook?

Biological psychology (Rosenzweig, Breedlove &

Leiman) 3 rd edition.

Used copies MAY be available but check edition

One copy will be on reserve in Porter

The bookstore doesn’t have enough copies for all of you (but they will get more if they sell out).

Don’t ignore the CD – it’s got some good stuff on it.

Check out the website ( www.biopsychology.com

) for great summaries of breaking neuroscience news

How do I get an ‘A’?

All evaluation is by multiplechoice (I don’t like it, but that’s life).

The midterm is on October 16 th and is worth 40%.

The exam is in the exam period and is worth 60%

Official documentation is required for a rewrite

I will bring example questions to class as often as I can.

In the past, few people who have failed to attend class regularly and kept up with the reading have succeeded in the course.

Try not to get behind.

Ask for help when a problem arises and NOT on the day before the midterm.

The organization of the course

My lectures will follow the syllabus, which is organized in terms of textbook chapters. But my lectures will not necessarily cover everything in the textbook.

I will publish coursenotes on the course website in time for you to print off and bring to class if you wish: http://watarts.uwaterloo.ca/~cellard/teaching/

PSYC261/p261index.html

It’s a huge class – but try not to be intimidated about asking questions. Ask on email and I will answer in class.

Three simple requests regarding etiquette

Please do your best to arrive on time (and

I’ll do the same).

Please don’t carry out loud, distracting conversations in class.

I will always finish class on or before the stroke of 2:20 pm. Please don’t start packing up until I’ve finished speaking.

What a great bunch of topics we have to cover!

Basic neuroscience stuff – brain cells, neuroanatomy, how brain cells communicate

How we know the external world (the senses)

How we engage that world (movement)

Sex, sleep and feeling.

Questions?

Psychology 261

Biological psychology:

Scope and Outlook

Lecture synopsis

What is biopsychology?

The three main experimental approaches

Examples of modern biopsychological research

What’s in a name?

Biological psychology or biopsychology

Physiological psychology

Psychobiology

Behavioural Neuroscience

What are we?

As neuroscientists, we’re the behaviour people.

As psychologists, we’re the brain people.

What is physiological psychology?

The study of the relationship between brain and behaviour

 study of behaviour

 comparative/evolutionary approaches

 developmental approaches

 mechanism

 application

The study of behaviour

structural descriptions of behaviour

 here’s where we say exactly what is happening (“the gentleman put his left leg over the melon….”) functional descriptions of behaviour

 this goes beyond direct observation -- makes some inferences about what is being done

(“foraging behaviour”)

 need to be careful with these-- know where your inferences come from

Comparative and Evolutionary approaches

continuity of behaviour

 nature is conservative -- expect to see the same things re-used eg. The nerve impulse species-specificity of behaviour

 nature can be adventurous -- new things can appear to suit the needs of a species eg. The evolution of language

We are all alike and we are all different

Developmental approaches

individuals change over the lifespan

(ontogeny)

Teenagers

RT to identify emotion in pictures like these begins to increase after age 11 and until about age 20. Also, emotion is more often mis-identified

Developmental Approaches (cont)

Teens show more activation in amygdala

Adults show more activation on frontal cortex.

This is your brain on fear (if you’re a teenager)

This is your brain on fear (if you’re an adult

Mechanism

the real engine of biopsychology

 how does the organization and activity of neurons explain behaviour?

It’s surprisingly rare to be able to give a very complete explanation of anything in neuroscience

Brain-behaviour relations

Edwin Smith Surgical Papyrus (1700 BC)

Describes a number of cases of head injuries

First mention of crossed relationship between brain and body

First mention of aphasia (loss of speech due to damage to left temporal lobe).

Gall and phrenology

Early origins of localization of function

Basic idea was that the brain is divided into different areas for different functions (not so silly) and that one could ‘read’ individual brain differences from bumps on the head (somewhat sillier).

fMRI and localization

The underlying assumptions

That the brain has something to do with our behaviour

A stronger form of this statement that most physiological psychologists would agree with is to say that the mind is the workings of the brain (This is identity theory, a form of monism).

That different parts of the brain do different things

Often, this is as far as our analysis has taken us.

Response specificity in the visual system

Gaze direction cells in neocortex

Cells in the brain of a monkey respond to the direction in which another monkey is looking

Application

research can be applied to human problems

There are many great examples (recovery of function, addiction, early diagnosis of diseases such as Alzheimer’s disease).

Transplants and implants, recovery

There is some evidence that procedures like this can help with Parkinson’s disease and perhaps other afflictions

Birdsong and brain growth

Fernando Nottebohm

Cross section of zebra finch brain showing song production (blue) and song learning (red) pathways.

The three main experimental approaches

somatic intervention behavioural intervention correlation

Somatic intervention

we mess with the brain to affect behaviour

 introduce a chemical

 make a lesion

 stimulate a pathway

Behavioural intervention

we mess with behaviour to affect the brain

 enriched environments

 imaging, EEG

Correlation

we mess with mathematics to look at the relationship between two variables

 these methods rely on individual differences are bigger brains better?

Is schizophrenia correlated with any interesting structural variation in brains?

Three main approaches to studying the physiology of behaviour

Summary

Physiological psychology is at the interface of psychology and neuroscience

Physiological psychology is multifaceted, and includes evolutionary, developmental, applied and mechanistic elements

The three main experimental approaches involve somatic or behavioural intervention, or correlation.

We’re really just getting started – there’s much to be done.

For next time….

You should read through Chapter 1 (I’ll bring some questions for you!).

Start reading Chapter 2 (neuroanatomy).

You will want to read this chapter several times before the midterm. There’s much to learn here.

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