ABOUT THE SPEAKER
Philip Zimbardo - Psychologist
Philip Zimbardo was the leader of the notorious 1971 Stanford Prison Experiment -- and an expert witness at Abu Ghraib. His book The Lucifer Effect explores the nature of evil; now, in his new work, he studies the nature of heroism.

Why you should listen

Philip Zimbardo knows what evil looks like. After serving as an expert witness during the Abu Ghraib trials, he wrote The Lucifer Effect: Understanding How Good People Turn Evil. From Nazi comic books to the tactics of used-car salesmen, he explores a wealth of sources in trying to explain the psychology of evil.

A past president of the American Psychological Association and a professor emeritus at Stanford, Zimbardo retired in 2008 from lecturing, after 50 years of teaching his legendary introductory course in psychology. In addition to his work on evil and heroism, Zimbardo recently published The Time Paradox, exploring different cultural and personal perspectives on time.

Still well-known for his controversial Stanford Prison Experiment, Zimbardo in his new research looks at the psychology of heroism. He asks, "What pushes some people to become perpetrators of evil, while others act heroically on behalf of those in need?"

More profile about the speaker
Philip Zimbardo | Speaker | TED.com
TED2009

Philip Zimbardo: The psychology of time

Filmed:
1,798,097 views

Psychologist Philip Zimbardo says happiness and success are rooted in a trait most of us disregard: the way we orient toward the past, present and future. He suggests we calibrate our outlook on time as a first step to improving our lives.
- Psychologist
Philip Zimbardo was the leader of the notorious 1971 Stanford Prison Experiment -- and an expert witness at Abu Ghraib. His book The Lucifer Effect explores the nature of evil; now, in his new work, he studies the nature of heroism. Full bio

Double-click the English transcript below to play the video.

00:18
I want to share with you
0
0
2000
00:20
some ideas about the secret power of time,
1
2000
2000
00:22
in a very short time.
2
4000
3000
00:25
Video: All right, start the clock please. 30 seconds studio.
3
7000
3000
00:28
Keep it quiet please. Settle down.
4
10000
5000
00:33
It's about time. End sequence. Take one.
5
15000
6000
00:39
15 seconds studio.
6
21000
3000
00:42
10, nine, eight, seven,
7
24000
3000
00:45
six, five, four, three, two ...
8
27000
7000
00:52
Philip Zimbardo: Let's tune into the conversation
9
34000
2000
00:54
of the principals in Adam's temptation.
10
36000
4000
00:58
"Come on Adam, don't be so wishy-washy. Take a bite." "I did."
11
40000
4000
01:02
"One bite, Adam. Don't abandon Eve."
12
44000
3000
01:05
"I don't know, guys.
13
47000
3000
01:08
I don't want to get in trouble."
14
50000
2000
01:10
"Okay. One bite. What the hell?"
15
52000
5000
01:15
(Laughter)
16
57000
2000
01:17
Life is temptation. It's all about yielding, resisting,
17
59000
3000
01:20
yes, no, now, later, impulsive, reflective,
18
62000
3000
01:23
present focus and future focus.
19
65000
3000
01:26
Promised virtues fall prey to the passions of the moment.
20
68000
2000
01:28
Of teenage girls who pledged sexual abstinence and virginity until marriage --
21
70000
3000
01:31
thank you George Bush --
22
73000
2000
01:33
the majority, 60 percent, yielded to sexual temptations within one year.
23
75000
4000
01:37
And most of them did so without using birth control.
24
79000
3000
01:40
So much for promises.
25
82000
2000
01:42
Now lets tempt four-year-olds, giving them a treat.
26
84000
4000
01:46
They can have one marshmallow now. But if they wait
27
88000
2000
01:48
until the experimenter comes back, they can have two.
28
90000
2000
01:50
Of course it pays, if you like marshmallows, to wait.
29
92000
3000
01:53
What happens is two-thirds of the kids give in to temptation.
30
95000
3000
01:56
They cannot wait. The others, of course, wait.
31
98000
3000
01:59
They resist the temptation. They delay the now for later.
32
101000
4000
02:03
Walter Mischel, my colleague at Stanford,
33
105000
2000
02:05
went back 14 years later,
34
107000
2000
02:07
to try to discover what was different about those kids.
35
109000
3000
02:10
There were enormous differences between kids who resisted
36
112000
2000
02:12
and kids who yielded, in many ways.
37
114000
2000
02:14
The kids who resisted scored 250 points higher on the SAT.
38
116000
4000
02:18
That's enormous. That's like a whole set of different IQ points.
39
120000
4000
02:22
They didn't get in as much trouble. They were better students.
40
124000
3000
02:25
They were self-confident and determined. And the key for me today,
41
127000
2000
02:27
the key for you,
42
129000
2000
02:29
is, they were future-focused rather than present-focused.
43
131000
3000
02:32
So what is time perspective? That's what I'm going to talk about today.
44
134000
3000
02:35
Time perspective is the study of how individuals,
45
137000
3000
02:38
all of us, divide the flow of your human experience
46
140000
3000
02:41
into time zones or time categories.
47
143000
2000
02:43
And you do it automatically and non-consciously.
48
145000
2000
02:45
They vary between cultures, between nations,
49
147000
2000
02:47
between individuals, between social classes,
50
149000
2000
02:49
between education levels.
51
151000
2000
02:51
And the problem is that they can become biased,
52
153000
2000
02:53
because you learn to over-use some of them and under-use the others.
53
155000
4000
02:57
What determines any decision you make?
54
159000
2000
02:59
You make a decision on which you're going to base an action.
55
161000
3000
03:02
For some people it's only about what is in the immediate situation,
56
164000
3000
03:05
what other people are doing and what you're feeling.
57
167000
3000
03:08
And those people, when they make their decisions in that format --
58
170000
3000
03:11
we're going to call them "present-oriented,"
59
173000
2000
03:13
because their focus is what is now.
60
175000
2000
03:15
For others, the present is irrelevant.
61
177000
2000
03:17
It's always about "What is this situation like that I've experienced in the past?"
62
179000
3000
03:20
So that their decisions are based on past memories.
63
182000
3000
03:23
And we're going to call those people "past-oriented," because they focus on what was.
64
185000
4000
03:27
For others it's not the past, it's not the present,
65
189000
2000
03:29
it's only about the future.
66
191000
2000
03:31
Their focus is always about anticipated consequences.
67
193000
2000
03:33
Cost-benefit analysis.
68
195000
3000
03:36
We're going to call them "future-oriented." Their focus is on what will be.
69
198000
3000
03:39
So, time paradox, I want to argue,
70
201000
2000
03:41
the paradox of time perspective,
71
203000
2000
03:43
is something that influences every decision you make,
72
205000
3000
03:46
you're totally unaware of.
73
208000
2000
03:48
Namely, the extent to which you have one of these
74
210000
2000
03:50
biased time perspectives.
75
212000
2000
03:52
Well there is actually six of them. There are two ways to be present-oriented.
76
214000
3000
03:55
There is two ways to be past-oriented, two ways to be future.
77
217000
2000
03:57
You can focus on past-positive, or past-negative.
78
219000
4000
04:01
You can be present-hedonistic,
79
223000
2000
04:03
namely you focus on the joys of life, or present-fatalist --
80
225000
3000
04:06
it doesn't matter, your life is controlled.
81
228000
2000
04:08
You can be future-oriented, setting goals.
82
230000
2000
04:10
Or you can be transcendental future:
83
232000
2000
04:12
namely, life begins after death.
84
234000
3000
04:15
Developing the mental flexibility to shift time perspectives fluidly
85
237000
2000
04:17
depending on the demands of the situation,
86
239000
3000
04:20
that's what you've got to learn to do.
87
242000
2000
04:22
So, very quickly, what is the optimal time profile?
88
244000
3000
04:25
High on past-positive. Moderately high on future.
89
247000
2000
04:27
And moderate on present-hedonism.
90
249000
2000
04:29
And always low on past-negative
91
251000
3000
04:32
and present-fatalism.
92
254000
2000
04:34
So the optimal temporal mix is what you get from the past --
93
256000
3000
04:37
past-positive gives you roots. You connect your family, identity and your self.
94
259000
4000
04:41
What you get from the future is wings
95
263000
2000
04:43
to soar to new destinations, new challenges.
96
265000
2000
04:45
What you get from the present hedonism
97
267000
2000
04:47
is the energy, the energy to explore yourself,
98
269000
3000
04:50
places, people, sensuality.
99
272000
4000
04:54
Any time perspective in excess has more negatives than positives.
100
276000
4000
04:58
What do futures sacrifice for success?
101
280000
3000
05:01
They sacrifice family time. They sacrifice friend time.
102
283000
2000
05:03
They sacrifice fun time. They sacrifice personal indulgence.
103
285000
4000
05:07
They sacrifice hobbies. And they sacrifice sleep. So it affects their health.
104
289000
5000
05:12
And they live for work, achievement and control.
105
294000
3000
05:15
I'm sure that resonates with some of the TEDsters.
106
297000
3000
05:18
(Laughter)
107
300000
2000
05:20
And it resonated for me. I grew up as a poor kid in the South Bronx ghetto,
108
302000
3000
05:23
a Sicilian family -- everyone lived in the past and present.
109
305000
3000
05:26
I'm here as a future-oriented person
110
308000
2000
05:28
who went over the top, who did all these sacrifices
111
310000
2000
05:30
because teachers intervened, and made me future oriented.
112
312000
4000
05:34
Told me don't eat that marshmallow,
113
316000
2000
05:36
because if you wait you're going to get two of them,
114
318000
2000
05:38
until I learned to balance out.
115
320000
3000
05:41
I've added present-hedonism, I've added a focus on the past-positive,
116
323000
5000
05:46
so, at 76 years old, I am more energetic than ever, more productive,
117
328000
3000
05:49
and I'm happier than I have ever been.
118
331000
3000
05:52
I just want to say that we are applying this to many world problems:
119
334000
2000
05:54
changing the drop-out rates of school kids,
120
336000
2000
05:56
combating addictions, enhancing teen health,
121
338000
3000
05:59
curing vets' PTSD with time metaphors -- getting miracle cures --
122
341000
3000
06:02
promoting sustainability and conservation,
123
344000
2000
06:04
reducing physical rehabilitation where there is a 50-percent drop out rate,
124
346000
4000
06:08
altering appeals to suicidal terrorists,
125
350000
2000
06:10
and modifying family conflicts as time-zone clashes.
126
352000
4000
06:14
So I want to end by saying:
127
356000
2000
06:16
many of life's puzzles can be solved
128
358000
3000
06:19
by understanding your time perspective and that of others.
129
361000
3000
06:22
And the idea is so simple, so obvious,
130
364000
2000
06:24
but I think the consequences are really profound.
131
366000
2000
06:26
Thank you so much.
132
368000
2000
06:28
(Applause)
133
370000
1000

▲Back to top

ABOUT THE SPEAKER
Philip Zimbardo - Psychologist
Philip Zimbardo was the leader of the notorious 1971 Stanford Prison Experiment -- and an expert witness at Abu Ghraib. His book The Lucifer Effect explores the nature of evil; now, in his new work, he studies the nature of heroism.

Why you should listen

Philip Zimbardo knows what evil looks like. After serving as an expert witness during the Abu Ghraib trials, he wrote The Lucifer Effect: Understanding How Good People Turn Evil. From Nazi comic books to the tactics of used-car salesmen, he explores a wealth of sources in trying to explain the psychology of evil.

A past president of the American Psychological Association and a professor emeritus at Stanford, Zimbardo retired in 2008 from lecturing, after 50 years of teaching his legendary introductory course in psychology. In addition to his work on evil and heroism, Zimbardo recently published The Time Paradox, exploring different cultural and personal perspectives on time.

Still well-known for his controversial Stanford Prison Experiment, Zimbardo in his new research looks at the psychology of heroism. He asks, "What pushes some people to become perpetrators of evil, while others act heroically on behalf of those in need?"

More profile about the speaker
Philip Zimbardo | Speaker | TED.com

Data provided by TED.

This site was created in May 2015 and the last update was on January 12, 2020. It will no longer be updated.

We are currently creating a new site called "eng.lish.video" and would be grateful if you could access it.

If you have any questions or suggestions, please feel free to write comments in your language on the contact form.

Privacy Policy

Developer's Blog

Buy Me A Coffee