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NEUROSC CM123 · Dis 1A

Neurobiology of Sleep

Fall 2026Kaplan, J.R.4 units

Also listed as PHYSCI CM123 (closed, 70 of 70 · 2 over enrolled): the same class, and each department holds its own seats and its own grade history.

Seats, time, final and grades

Seats

Closed.

13 of 13 enrolled.

Read 3 hours ago. The latest refresh is overdue. Seats and instructors may have changed since. Check the registrar before enrolling.

Its lecture reads closed (34 of 34 · 1 over enrolled): you attend both, so this seat is not one you can take while that holds. No waitlist listed.

Meets

R 4:00pm-4:50pm

This discussion only. You also attend Lec 1.

Final

Thu 10 Dec, 11:30am to 2:30pm

One exam for the whole class, Los Angeles time.

Read 3 days ago.

Grades

3.86

Predicted GPA

Historical records across all instructors; 135 letter grades

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Before you can enroll

Registrar's Restrictions cell, read 26 hours ago: "Juniors and Above, and Neuroscience Majors or Minors".

Tell dibs what you have already taken and this line will say which of these you have. Your list.

From the registrar enrollment limit

Enrollment is limited to senior Neuroscience majors and minors on the priority and first enrollment passes. Junior/senior Neuroscience majors and minors may enroll on the second pass, space permitting.

This limit ends at an enrollment pass rather than on a date, and dibs does not hold the date second pass opens for Fall 2026, so it cannot say whether that pass has come. When it does, the registrar writes who may enroll then as “Junior/senior Neuroscience majors and minors may enroll on the second pass, space permitting.” So dibs cannot tell whether this class is open to you today, and it is not counting it as one you can take: your enrollment appointment on MyUCLA is what settles it. This class is also Juniors and Above, and Neuroscience Majors or Minors, which the pass does not lift.

Restrictions read 26 hours ago.

When it meets

This discussion and its linked lecture.

Mon
Tue
Wed
Thu
Fri
4pm
5pm

Lec 1

4pm-5:50pm

Lec 1

4pm-5:50pm

Dis 1A

4pm-4:50pm

Scroll sideways for the whole week. All meeting times are listed below.

  • Dis 1A

    R 4:00pm-4:50pm

  • Lec 1 (required lecture)

    MW 4:00pm-5:50pm

Geology Building 6704

Grades

3.86

Predicted GPA

Historical records across all instructors; 135 letter grades

Of the 5 people in the grade record for NEUROSC CM123, the 2 with the most grades: COLWELL, CHRISTOPHER S at 3.89 over 135 grades and PAUL, KETEMA NNAMDI at 3.89 over 69 grades.

A range
93%
P/NP
0%
D/F/W
0.0%

Full grade history for NEUROSC CM123

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

What the work looks like

  • No exams, 1 mention in past reviews
  • 2 papers, 1 mention in past reviews
  • 1 presentation, 1 mention in past reviews

Based on 8 reviews; source checked 7 days ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.

Will it still be here

high risk chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 4521F
  • 2222F
  • 3824F
  • 3125F
Enrollment by term: 21F 45, 22F 22, 24F 38, 25F 31

Peak 45 · most recent 25F at 31

Seats over time

Nothing read since 16 Oct, 3 hours ago. Over about 2 months before that, same seat count, but the status moved and came back and the waitlist moved and came back.

13 of 13 · no seats left

All 8 readings say 13 of 13.

18 Aug 18:4117 Sep 06:1716 Oct 17:53 · 3 hours ago
Checked 168 of the 1255 hours with hourly history, 13%. No reading was recorded in 1087 hours. dibs had no hourly record before 25 Aug, which is the other 161 of 1416 plotted.13 of 13 enrolled at the newest reading, 3 hours ago, and no seats left. Seats from 18 Aug 18:41 to 16 Oct 17:53, 13 to 13. Recorded enrollment counts match. Checks are not continuous monitoring. Changes between checks may be missed.

A dot is a reading. Recorded enrollment counts match, so the line is flat across the whole window: it says when dibs looked rather than what changed. The last dot is the last time dibs read this section, moved or not, and that was 3 hours ago. It is the last thing dibs saw, not where the count is now.

Show the readings (8)
Recorded Enrolled Capacity Status Waitlist Hours read
16 Oct 17:53 13 13 closed - 24 of 166
9 Oct 20:52 13 13 closed - 3 of 19
9 Oct 02:32 13 13 waitlist 0 of 3 7 of 44
7 Oct 07:22 13 13 waitlist 1 of 3 17 of 136
1 Oct 16:12 13 13 waitlist 0 of 3 4 of 22
30 Sep 19:22 13 13 waitlist 1 of 3 9 of 58
28 Sep 10:52 13 13 waitlist 2 of 3 110 of 977, 161 no hourly record
18 Aug 18:41 13 13 closed 3 of 3 -
How readings and alerts work

Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

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Dis 1A shares one room with Lec 1 and every other discussion under it, because that is what a student means by "my class".

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